Abstract: A cable connector assembly including: an electrical connector including an insulative housing, a number of contacts retained in the insulative housing and arranged in two rows apart from each other along a vertical direction, and a latch retained in the insulative housing, wherein the contacts arranged in an upper row include a pair of high-frequency signal contacts and the contacts arranged in a lower row include a pair of high-frequency signal contacts, the two pairs of high-frequency signal contacts disposed relative to each other along the vertical direction; and a cable including a number of wires electrically connected with the contacts of the electrical connector; wherein the electrical connector further includes a grounding plate, the grounding plate including a shielding sheet extending between the two pairs of high-frequency signal contacts.

Abstract: A high frequency connector with enhanced grounding for reduced crosstalk includes an insulative main body, a plurality of first terminals and second terminals, a back cover and a grounding member. The first terminals and the second terminals are disposed in the insulative main body, the back cover is provided at the second end of the insulative main body. The back cover is formed with an opening and capable of preventing the first terminals from being detached from the insulative main body. The grounding member has a body portion and contact sprint portion, the body portion is disposed inside the insulative main body and located between the first terminals and second terminals. The contact spring portion extends outward from the insulative main body and contacts the metal case of a mating plug connector for reducing crosstalk and restraining electromagnetic interference.

Abstract: An interference-proof electrical plug connector has an insulative housing, two terminal sets, a shielding-grounding plate and a shell. The terminal sets are mounted in the insulative housing and each terminal sets has multiple conductive terminals. Each terminal set has multiple conductive terminals and at least one pair of super-speed signal terminals. Each super-speed signal terminal has a mounting section including a widening tab laterally protruding from the mounting section toward an adjacent super-speed signal terminal to reduce the distance between the super-speed signal terminals of the pair. The shielding-grounding plate is mounted in a rear end of the insulative housing. The widening tabs of each pair of the super-speed signal terminals effectively diminish impedance of the super-speed signal terminal such that input loss and return loss of the super-speed signal terminals are reduced.

Abstract: A USB Type-C connector includes a transmission conductor group arranged according to functions and positions associated with electric characteristics. The transmission conductor group includes a first signal transmission conductor group, a second signal transmission conductor group, and a power transmission conductor group. Considering the way of arrangement, the second signal transmission conductor group is located at one side of the first signal transmission conductor group and the power transmission conductor group is similarly located at one side of the first signal transmission conductor group. As such, with such an arrangement, advantages of improved interference resistance, bettered performance of high frequency, and large electric current can be achieved.

Abstract: An electrical connector includes a plurality of leadframe assembly, each having a leadframe housing and a plurality of contacts carried by the leadframe housing. The electrical connector includes at least one unassigned electrical contact that includes a resistor.

Abstract: An apparatus may include a conductive wire and a plug. The plug may be electrically and mechanically coupled to the conductive wire. The plug may include a non-conductive overmold, an electrically conductive barrel, and a lip. The non-conductive overmold may surround the conductive wire. The electrically conductive barrel may extend from the overmold, and may have a width that is smaller than a width of the overmold. The lip may extend from the barrel in a direction substantially perpendicular to a direction in which the barrel extends from the overmold. A distance from an outer portion of the lip to an opposite outer portion of the lip may be at least twice a length that the barrel extends from the overmold.

Abstract: Electrical connectors for interconnecting circuit boards. One such connector includes an integral flange for mounting a guidance pin in any of multiple orientations. A corresponding keying block may have a polarization component that can be mounted in a corresponding number of positions. The connector can accept conductive elements with different shapes for signals and grounds, but the housing may be adapted to receive either type of contact in any contact location. Protection of contact elements from excessive yield is provided within the insulative housing of the backplane connector. On the daughter card connector, height difference between ground and signal contacts in wafer assemblies protects components from electrostatic discharge.

Abstract: A board edge connector to which a board is inserted along an oblique direction relative to its fixed posture includes a main body, a plurality of contacts arranged in juxtaposition on the main body along a direction perpendicular to an insertion direction of the board, and a cover member covering the main body. The main body includes a base portion on which the multiple contacts are juxtaposed and a pair of arm portions extending from the base portion along opposed lateral edges of the board which assumes a fixed posture. The cover member includes an attaching portion covering the base portion and a pair of arm members covering lateral faces of the pair of arm portions, the pair of arm members being formed integral with the attaching portion.

Abstract: There are provided a first insulator substrate; a first contact comprising a plurality of contact pins arranged in an array on a top surface of the first insulator substrate; a second insulator substrate; a second contact comprising a plurality of contact pins arranged in an array on an undersurface of the second insulator substrate; a metal plate sandwiched between an undersurface of the first insulator substrate and a top surface of the second insulator substrate; and a metal shell accommodating the first and second insulator substrates, the first and second contacts and the metal plate; wherein the metal plate comprises a pair of protruding parts formed on both ends in an array direction of the contact pins, being oriented toward the outside; and the metal shell comprises a pair of windows to be engaged with the pair of protruding part.

Abstract: A multilayer circuit board includes a first substrate and a second substrate in stack. The first substrate has a first pad, and a first circuit, wherein the first circuit is embedded in the first substrate, and the first pad is electrically connected to the first circuit. The second substrate has a first through hole, a second pad, and a second circuit, wherein the first through hole is opened at both sides of the second substrate, and the first pad of the first substrate is in the first through hole; the second circuit is embedded in the second substrate, and the second pad is electrically connected to the second circuit. The pads on each substrate are exposed by the through hole(s) of the above substrate(s) to shorten the null sections of the interconnectors and reduce the interference from the null sections.

Abstract: The present disclosure relates to an earphone socket, an earphone plug, an earphone and an electronic device. For example, the earphone socket may include a socket body in which an earphone jack is formed. The earphone socket may include multiple ground terminals, which may be arranged in the earphone jack. The ground terminals may contact a ground section disposed on an earphone plug when the earphone plug is inserted into the earphone jack. The technical solutions of the present disclosure reduce earphone crosstalk and improve tone quality.

Abstract: Connector inserts having retention features with good reliability and holding force. These connector inserts may include ground contacts that provide an insertion portion having a reduced length. These connector inserts may be reliable, have an attractive appearance, and be readily manufactured.

Abstract: An electrical connector assembly includes a first electrical connector and a second electrical connector. Each electrical connector can include a plurality of electrical ground shields that at least partially surround respective differential signal pairs. The electrical connectors can be constructed so as to reduce cross-talk between adjacent signal pairs. For example, the first electrical connector can include a connector housing defining an end that is configured to be mounted to a substrate. The ground shields can define a body that extends through the connector housing, such that the ground shields extend through the end so as to be disposed between the end and the substrate when the connector is mounted to the substrate.

Abstract: An electrical connector includes a housing, signal modules, and ground plates. The signal modules and ground plates are arranged in a pattern that includes ground plates flanking corresponding pairs of signal modules within the housing. The signal modules have a dielectric body and signal conductors held within the dielectric body. The signal conductors include contact beams protruding from a front edge for electrical termination. Each ground plate has contact beams aligned with the contact beams of the signal modules to provide shielding therebetween. Each signal module has a lateral thickness that is greater than a thickness of each ground plate. The signal conductors of each signal module are offset relative to a central plane of the signal module such that contact spacings between adjacent contact beams are uniform. Optionally, ground tie bars extend through the signal modules and ground plates to electrically common the ground plates.

Abstract: An electrical connector includes an insulative housing defining a forwardly extending mating tongue, a plurality of contacts with contacting sections exposed upon the mating tongue and a metallic shield enclosing the insulative housing to define a mating cavity. A metallic shielding plate is embedded within the mating tongue and forms a pair of locking notches in two opposite lateral sides. The mating tongue further includes in two opposite lateral sides a pair of recesses aligned with and intimately located inside of the pair of locking notches, respectively, in the transverse direction. The housing and the corresponding contacts commonly form the terminal module which is composed of an upper terminal module, a lower terminal module commonly sandwiching a shielding plate module therebetween in the vertical direction. The metallic shield optionally defines a clip structure by folding an extension on a rear lower edge thereof.

Abstract: An electrical receptacle connector includes a terminal module assembly and a grounding collar thereon. The terminal module assembly includes the front mating tongue, the rear body, and the step structure therebetween, and the corresponding contacts. The contacts are secured to the body with contacting sections exposed upon the mating tongue. The grounding collar includes the grounding regions located on two opposite upper and lower surfaces of the step structure. The front edge area of the grounding region adjacent to the front edge area, forms a notch so as to leave a space to allow the spring finger of the corresponding interior grounding plate of the plug connector to first slide upon the step structure and successively contact the grounding region of the grounding collar of the receptacle connector.

Abstract: An electrical connector includes a housing having a front and a rear. The housing including a slot defined through the front that is configured to receive a mating connector therein. Signal contacts are held in the housing. The signal contacts are arranged within the slot to mate with the mating connector. Ground contacts are held in the housing and interspersed among the signal contacts. The ground contacts are arranged within the slot to mate with the mating connector. A ground bus includes a base and multiple sets of projections extending from the base. Each set including at least two projections that engage the same corresponding ground contact at spaced-apart locations. The sets of projections are connected via the base to create a ground circuit between the ground contacts that are engaged by the ground bus.

Abstract: An electrical plug connector includes an insulating housing, two terminal sets, and a metallic component. The insulating housing includes a front portion and a rear portion, and a receiving cavity is formed inside the front portion. The two terminal sets separately include a plurality of terminals and are arranged in an upper-row terminal set and a lower-row terminal set. Each terminal includes a contact portion disposed in the receiving cavity, a retaining portion retained in the insulating housing, and a soldering portion disposed in the rear of the insulating housing. The metallic component includes a plate body and two latches. The plate body is disposed in the rear portion and clamped between the upper-row and lower-row terminal sets. The two latches are separately disposed at two sides of the plate body and symmetrical to each other. The plate body and the two latches are formed in one piece.

Abstract: A modular electric power distribution system transmits power between a power source and control modules for power consumers. The system includes a power distribution unit mounted on each module and bridge assemblies which connect adjacent distribution units.

Abstract: An electrical receptacle connector includes an insulated housing, a metallic shell and a plurality of connecting portions. The insulated housing is in the metallic shell. The metallic shell includes a tubular body, a connecting plate and a folded portion. The tubular body includes an outer wall and an inner wall. The connecting plate is at the outer wall or the inner wall, and the folded portion is extended from the tubular body toward the connecting plate. The connecting portions are configured to fix the connecting plate to the tubular body so that the connecting plate is fixed on the tubular body.

Abstract: A header assembly of a mezzanine connector system may include a main housing defining signal channels extending through the main housing and ground channels extending into a first surface of the main housing, a plurality of signal modules, and a plurality of ground shields. At least a portion of each of the plurality of signal modules is retained within a respective one of the signal channels. At least a portion of each of the plurality of ground shields is retained within at least one of the ground channels.

Abstract: A card edge connector is used for connecting an electronic card to a printed circuit board and includes an insulative housing defining a central slot extending along a longitudinal direction with a key disposed therein and a plurality of terminal slots located on at least one side of the central slot; and a plurality of conductive terminals received in the terminal slots and each defining a retaining portion retained in the insulative housing, a contacting portion extending into the central slot along a mating direction perpendicular to the longitudinal direction and a soldering portion extending outside of the insulative housing. The retaining portion of each conductive terminal defines a pair of positioning portions interfering with the insulative housing in the longitudinal direction, and each positioning portion defines an inclined portion guiding the conductive terminal inserted into the insulative housing along the mating direction.

Abstract: A connector sub-assembly includes a dielectric carrier, plural signal conductors, and a ground frame. The dielectric carrier is defined by first and second overmolded bodies that engage one another at an overmold interface. An intermediate segment of each signal conductor is encased within the dielectric carrier. The ground frame is held between the first and second overmolded bodies at the overmold interface. The ground frame includes a ground bus bar encased within the dielectric carrier and plural ground conductors extending from the ground bus bar. The second overmolded body is formed in-situ on an inner side of the first overmolded body. An inner side of the second overmolded body at the overmold interface is partially defined by a profile of the inner side of the first overmolded body and partially defined by the ground frame.

Abstract: In one embodiment, a source device and sink device communicate with one another via a multimedia link. The multimedia link includes a cable and a plug. The cable includes one or more data lines, power lines, ground lines or control bus lines. The plug includes a plurality of pins each connected to the one or more lines included in the cable. The plug also includes a ground plane and a power plane, wherein a ground pin of the plug connects the ground plane to the ground line of the cable of the multimedia link and a power pin of the plug connects the ground plane to the power line of the cable. In one example, the ground plane and power plane are placed within a threshold distance of one another, such that the power line connected to the power plane via the power pin behaves as a signal return path.

Abstract: An electrical connector includes an insulation main body and a plurality of conductive terminals. The insulation main body is formed with a tongue. The tongue is formed with a first surface and a second surface opposite to the first surface. Each of the conductive terminals is installed in the tongue. Each of the conductive terminals is formed with a first contact part, a second contact part and a solder part. The first contact part is exposed on the first surface, and the second contact part is exposed on the second surface. The solder part is vertically connected to the first contact part or the second contact part and protruded out of the tongue. Accordingly, the electrical connector complying with the USB Type-C specification, allowing conductive terminals having the same definitions to be integrated and being specially used for power delivery is provided.

Abstract: An electrical connector designed to be fastened on a daughterboard and to be plugged into a motherboard in a plugging direction, comprising: a plurality of contacts including a first end in the plugging direction designed to be in contact with the motherboard, and a second end opposite the first end in the plugging direction and designed to be in contact with the daughterboard, and at least one insulator. The connector comprises at least one single-piece fastening device, including: a fastening base on which the insulator is mounted, and one or the other, or both, of a fastening tip designed to be fastened on the daughterboard, and a guide tip protruding from the insulator in the plugging direction to be used as a guide during plugging of the connector into the motherboard. An assembly including the daughterboard and the connector is also disclosed.

Abstract: An assembly is disclosed herein, including a connector and a carrier for carrying the connector. The connector includes a plurality of terminals having terminal contacts, a first shield at least partially surrounding at least one first terminal and having a first shield contact and a second shield at least partially surrounding at least one second terminal and having a second shield contact. The carrier includes a plurality of signal conductors, e.g. being a circuit board or a connector body. The carrier also includes a plurality of, advantageously substantially identical, contact sites. The terminal contacts are contacted to a number of the contact sites of the carrier, and the first and second shield contacts are arranged adjacent each other so that they together fit and are contacted to one contact site of the carrier.

Abstract: A connector is mateable with a mating connector along a mating direction. The connector comprises a housing, a plurality of first contacts, a plurality of second contacts and a ground plate. The housing has a plate-like portion extending in a predetermined plane which is defined by the mating direction and a pitch direction perpendicular to the mating direction. The plate-like portion has a first principal surface and a second principal surface which is opposite to the first principal surface in a predetermined direction perpendicular to both the mating direction and the pitch direction. The first contacts are held by the housing. The first contacts have first contact portions, respectively. The second contacts are held by the housing. The second contacts have second contact portions, respectively. The ground plate includes a main portion. The main portion is formed with a plurality of openings.

Abstract: A cable connector assembly includes a cable connector comprising an insulative housing and a plurality of conductive terminals mounted in the insulative housing, the conductive terminal having a connecting portion; a cable having a plurality of wires electrically connecting with the connecting portions, the wire comprising a core, an insulative layer enclosing the core, and a grounding layer enclosing the insulative layer, the core extending beyond the grounding layer; and a conductive element electrically connecting with the connecting portion of a selected conductive terminal. The conductive element electrically connects the grounding layers; and the cores of the wires electrically connect with the connecting portions of the remaining conductive terminals.

Abstract: Provided is an electric connector, including: a housing placed on a circuit board and including a receiving concave portion formed by a substantially square-cylindrical-shaped inner wall surface and receiving a mating connector, and a center convex portion disposed between a pair of opposed walls forming the receiving concave portion; a plurality of terminals accommodated in a plurality of terminal grooves formed in each of the pair of the opposed walls; and a ground metal fitting connecting with a plate-shaped ground plate included in the mating connector, wherein the housing includes a space accommodating the ground metal fitting, where the space is disposed in the central area between the pair of the opposed walls and extends in the arrangement direction of the terminals, the upper part of the space communicates with an opening formed in the center convex portion, and receives the mating ground plate.

Abstract: An electrical connector including electrical terminals, and a housing. The housing includes a first housing member and a second housing member. The second housing member includes terminal receiving areas which house the electrical terminals. The second housing member includes projections into the terminal receiving areas to limit forward movement of the electrical terminals in the terminal receiving areas. The first housing member includes a plurality of projections respectively extending into each of the terminal receiving areas to limit rearward movement of the electrical terminals in the terminal receiving areas. The electrical terminals float in the terminal receiving areas between the projections of the first housing member and the projections of the second housing member.

Abstract: An apparatus may include a conductive wire and a plug. The plug may be electrically and mechanically coupled to the conductive wire. The plug may include a non-conductive overmold, an electrically conductive barrel, and a lip. The non-conductive overmold may surround the conductive wire. The electrically conductive barrel may extend from the overmold, and may have a width that is smaller than a width of the overmold. The lip may extend from the barrel in a direction substantially perpendicular to a direction in which the barrel extends from the overmold. A distance from an outer portion of the lip to an opposite outer portion of the lip may be at least twice a length that the barrel extends from the overmold.

Abstract: A connector has signal contacts and ground contacts, each of which includes a contact portion to be connected with a mating connector. In a predetermined plane, the contact portions of the signal contacts and the contact portions of the ground contacts are grouped and arranged into a first line and a second line. In the predetermined plane, four specific signal contact portions are surrounded by four specific ground contact portions. The four specific signal contact portions are the contact portions of the signal contacts constituting two pairs. The four specific ground contact portions are two of the contact portions of the ground contacts belonging to the first line and two of the contact portions of the ground contacts belonging to the second line.

Abstract: A configurable power switching controller includes multiple power channels and a programming connector that connects the load outputs of a subset of the multiple power channels thereby creating at least one merged power channel.

Abstract: A connector is fixable to an object such as a circuit board. The connector comprises a housing having a land extending long in a lengthwise direction, a power contact, a metal plate for protecting the connector from ESD, a shell (connection member) configured to be fixed and connected to the circuit board, and a coupling member coupling the metal plate and the shell with each other. The metal plate is inserted in and held by the land. The connector is thus configured so that a static electricity is grounded to the circuit board through the metal plate, the coupling member and the shell. Moreover, the power contact is locatable at an end of the land in the lengthwise direction so that it is possible to reduce the size of the connector.

Abstract: An electrical connector including a housing having a mating connector receiving passageway. A pair of first differential signal contacts have solder portions and first contact portions positioned in the mating connector receiving passageway. A first ground contact faces the pair of first differential signal contacts. The first ground contact has a solder portion and a pair of first grounding contact portions spaced apart from each other by a gap and positioned in the mating connector receiving passageway. The pair of first grounding contact portions face the first contact portions of the pair of first differential signal contacts.

Abstract: A connector has contacts, a housing holding the contacts, and a holder member fixed to the housing and is adapted to be fitted with a mating connector along a predetermined fitting direction. The housing has a first lateral portion on a side fitted with the mating connector and a second lateral portion on the other side opposite thereto. Each of the contacts has contact press-fit portions press-fitted into the housing from the side of a second lateral portion. The holder member has a restricting portion which is arranged adjacent to the contact on the side of the second lateral portion in the fitting direction and which restricts movement of the contact toward the second lateral portion.

Abstract: A clamping apparatus includes a base, a vertical support member coupled to the base, and a head member coupled to the vertical support member. The head member is configured to receive and engage a portion of a coaxial cable. Additionally, the base is configured to engage through a through hole or slot arranged through a substrate and provide electrical communication between a portion of the coaxial cable and the substrate.

Abstract: An intermediate electrical connector to be connected to a mating connecting member includes an intermediate connecting member; and a blade disposed in the intermediate connecting member. The blade includes a first ground plate, a second ground plate, a base member, a signal terminal, and a ground terminal. The signal terminal includes a first contact portion and a first connecting portion connected to the first contact portion. The ground terminal includes a second contact portion and a second connecting portion connected to the second contact portion. The first ground plate is situated on one side of the blade over the first connecting portion and the second connecting portion. The second ground plate is situated on an opposite side of the blade over the first connecting portion, the second connecting portion, the first contact portion, and the second contact portion.

Abstract: An enclosure includes a sidewall defining an opening through which a connector is to extend and a through hole, a resilient piece, and a sliding member slidably received in the through hole. The resilient piece includes a connecting piece slantingly extending from the sidewall between the opening and the through hole and a contacting piece connected to a distal end of the connecting piece. When the connector extends through the opening, The sliding member is slid toward the resilient piece to force the contacting piece to contact the connector.

Abstract: In the connector disclosed herein, a shunting member is arranged between the case and the cover member. The shunting member has a first contact piece elastically deformed by contact with a terminal inserted into a first terminal hole in the case, and a second contact piece elastically deformed by contact with a terminal inserted into a second terminal hole.

Abstract: A number of variations may include a casting having a raised integrated cast grounding block with tunable surfaces for routing an electrical grounding wire/strap via an eyelet and an anti-rotational tab attachment.

Abstract: A cable assembly including a communication cable. The communication cable includes insulated conductors, a shielding layer that surrounds the insulated conductors, and a drain wire that extends along the shielding layer. The insulated conductors, the shielding layer, and the drain wire extend along a length of the cable to a terminating end of the cable. The cable assembly also includes a ground ferrule that is coupled to the terminating end of the cable. The ground ferrule is intimately engaged with the drain wire along a contact zone, wherein the ground ferrule and the drain wire are laser-welded together for at least a portion of the contact zone.

Abstract: A header assembly includes a center contact, a dielectric body surrounding the center contact and an outer housing holding the center contact and the dielectric body. The outer housing has a rear shell mounted to a circuit board and positioned interior of the casing. The outer housing has an outer contact extending from the rear shell that extends through an opening in the casing with a portion of the outer contact positioned exterior of the casing. The dielectric body is received in the outer contact. A shield member is coupled to the outer housing. The shield member engages the outer contact to electrically connect the shield member to the outer housing. The shield member has spring fingers that engage the casing at the opening. The spring fingers electrically connect the outer housing to the casing.

Abstract: The present invention relates to a method and an arrangement for visual indication of an electrical quantity, being one or several of power, current and/or voltage through a conductor. The arrangement comprises a substantially wire shaped illuminator and a controller which controls at least one illumination characteristic of said illuminator with respect to said electrical feature.

Abstract: A threadless light socket assembly allows a light bulb to be changed by pushing or pulling the light bulb into or out of the socket provides an outer insulator housing and an insulator cap which carrying a ground socket in a medial channel that grounds a light bulb base to a power supply. Plural spring biased thread locks protrude into center of the ground socket and are staggered in height to align with threads defined in a light bulb base. A positive contact is in the socket assembly supplies positive power from a power supply to the light bulb base. The threadless light socket has interchangeable components to allow installation in new and existing light fixtures.

Abstract: A receptacle connector includes a housing having a mating interface for mating with a mating connector. Ground contacts are held by the housing. The ground contacts include ground mating segments arranged along the mating interface of the housing for mating with ground terminals of the mating connector. The ground mating segments of the ground contacts include ground mating surfaces configured to engage the ground terminals. The ground mating surfaces of the ground mating segments extending within at least one ground plane. Signal contacts are held by the housing. The signal contacts include signal mating segments arranged along the mating interface of the housing for mating with signal terminals of the mating connector. The signal mating segments of the signal contacts include signal mating surfaces configured to engage the signal terminals.

Abstract: A video game controller charging system for charging at least one video game controller is provided. The system includes a controller adapter including a battery unit, at least one first induction coil, and at least one first magnet, and is adapted to be received by the at least one video game controller; and a base including a power input, at least one second induction coil, and at least one structure on the base for providing physical support to the controller while the controller is being charged, the at least one structure including at least one second magnet. The base is configured to inductively charge the battery unit through inductive coupling between the at least one first induction coil and the at least one second induction coil when the controller is held in place on the structure by magnetic attraction between the magnets.

Abstract: A condenser microphone includes a cylindrical microphone case having a condenser microphone unit therein; a microphone connector having an insulating base, one ground pin and two signal pins are embedded in the microphone connector; and a cylindrical connector sleeve fitted in the microphone case and accommodating the microphone connector therein, in which the connector sleeve has a concave-convex part on the outer peripheral surface thereof, the concave-convex part is in contact with the inner peripheral surface of the microphone case at a plurality of points after the connector sleeve is fixed into the end of the microphone case by fixing means, and thereby the connector sleeve is electrically conducted with the microphone case.

Abstract: An electrical connector (100) includes a middle board (4) defining a plurality of receiving holes (41, 42), a first insulative housing (1) mounted on one side of the middle board and defining a first receiving room (13), and a number of contacts (3) mounted on the first insulative housing. The contacts include a number of signal contacts (S) and a number of grounding contacts (G). Each of contacts includes a first mating portion (31), a second mating portion (32), and a middle portion (33) between the first and the second mating portions. The middle portions extend beyond the first insulative housing and are received in the receiving holes. Each of the middle portions of the signal contacts is solid. Each of the middle portions of the grounding contacts has a through hole (331) and has an outer profile wider than that of middle portion of the signal contact.