Abstract: A connector assembly for mating with a power distribution module is provided. The connector assembly includes a header connector assembly and a fuse connector assembly. The header connector assembly is configured to be mounted to the power distribution module. The header assembly includes contacts that are connected to a power supply circuit within the power distribution module. The fuse connector assembly is configured to mate with the header assembly. The fuse connector assembly includes a fuse subassembly that has an insert body configured to hold a fuse and conductive terminals. The conductive terminals are mounted to the insert body and are configured to electrically couple with the fuse to establish a fused conductive pathway. The fuse subassembly mates with the contacts in the header assembly to electrically couple the fused conductive pathway with the power supply circuit of the power distribution module.

Abstract: A card reader is disclosed to include a body, which has a USB plug at one end and an insertion slot at the other end for the insertion of an electronic card, an adapter, which is receivable in a top accommodation open chamber of the body and has a Micro-USB plug and a Mini-USB plug at two opposite sides, and a transmission line, which is receivable with the adapter in the top accommodation open chamber of the body and has a first connection terminal electrically connected to a circuit board inside the body and a second connection terminal inserted into a base of the adapter and electrically connected with the Micro-USB plug and the Mini-USB plug. An electronic apparatus to which the USB plug or the Micro-USB plug or Mini-USB plug of the adapter is connected can fetch data from an electronic card that is inserted into the insertion slot.

Abstract: A cable assembly (1) includes an insulative housing (11) having a base portion (110) and a tongue portion (112) extending forwardly from the base portion, a plurality of contacts mounted to the insulated housing; a metal shell (13) having a tube-shaped mating frame (1311) enclosing the tongue portion therein, and at least a cleat member (1314) formed on a rear portion of the mating frame; and a cable including a number of wires and strength member (222) therein, said wires respectively connected to the contacts, and said strength member wrapped around the cleat member and sandwiched between the base portion of the insulative housing and the cleat member.

Abstract: The present invention relates to a structural improvement of an electromagnetic interference shielding device for a card connector, comprising a base of the card connector and an electromagnetic interference shielding device; the base of the card connector comprises a receiving space, a docking device and two male bayonet members; the receiving space is configured for receiving a PC card; the docking device comprises a set of terminals and two ground straps; the electromagnetic interference shielding device is a one-piece cover to shield the docking device, which comprises two female bayonet members, at least two grounding guide spring plates, two grounding fins and two gripping type grounding holders; the two male bayonet members of the base engage with the two female bayonet members; the grounding fins and grounding holders are connected to the two ends of the ground straps.

Abstract: An electrical connector includes an insulating housing (1) defining a receiving cavity (10) with an opening (101) opened forward and running through a mating face (11). A plurality of terminals are mounted in the insulating housing. A cover (4) defines a space for partly receiving the insulating housing therein, and includes a front wall (43) with an aperture (430) corresponding with the opening (101). A shell (5) is provided for shielding the insulating housing and the cover. A sleeve (3) has a base portion (32) sandwiched between the mating face (11) and the front wall (43) of the cover (4), and a ring (31) projecting forward through the aperture (430), therefore the sleeve can not release from the insulating housing easily.

Abstract: A device may include a card including a card connector and/or a card edge lockshield disposed on at least a card connector first side. Additionally, a computer system may include a motherboard including at least one mating connector and/or at Least one card including a card connector and a card edge lockshield disposed on at least a card connector first side. Further, a method for providing the device and/or computer system is disclosed.

Abstract: A system comprises a cable connector, a board-mounted receptacle to which the cable connector is electrically coupled, and an electromagnetic interference (“EMI”) shield that is disposed about the board-mounted receptacle. The EMI shield has an opening through which the cable connector is inserted to be coupled to the board-mounted receptacle. The EMI shield covers a portion of a board, to which the board-mounted receptacle is mounted, and a surface of the EMI shield adjacent to the board covers at least 11% of the portion.

Abstract: A connector (10) for an apparatus includes a housing (11) having a fit-in part (41) to be fit in a mounting hole (33) that penetrates through a case (30) of the apparatus. Tubular terminal insertion parts (42), penetrating through the fit-in part (41) and can receive a terminal fitting (21) connected with an end of a wire (20). Guide ribs (46A-46C) project from the fit-in part (41) into the case (30) and are spaced apart around an inner peripheral surface of the mounting hole (33). Reinforcing ribs (45A-45D) projecting into the case (30) Each reinforcing rib (45A-45D) and connects a side edge of a guide rib (46A-46C) to a peripheral surface of a terminal insertion part (42).

Abstract: In one example embodiment, a pluggable optoelectronic module includes a shell with a front, back, and first and second sides. A first guiderail protrudes from the first side and extends from the front of the shell to the back of the shell. A second guiderail protrudes from the second side and also extends from the front of the shell to the back of the shell. A first thumbscrew runs the length of the module and is housed within the first guiderail. A second thumbscrew also runs the length of the module and is housed within the second guiderail. The two thumbscrews are configured to secure the module to a host device when the module is plugged into the host device.

Abstract: A connector assembly includes a shielding cage, a center plate and an electromagnetic seal element. The shielding cage includes side walls with ports disposed between the side walls. The ports receive mating connectors through a mating interface of the shielding cage. The center plate includes transverse walls disposed between and coupling the side walls of the shielding cage to one another. The center plate separating the ports and defines a chamber between the transverse walls and the side walls of the shielding cage. The electromagnetic seal element is disposed in the chamber of the center plate and engages the transverse walls of the center plate to prevent electromagnetic interference within the center plate from radiating through the mating interface.

Abstract: A communications cable having a plurality of twisted wire pairs each having a substantially uniform twist rate along the cable. An elongated shielding separator is positioned between the twisted wire pairs and physically separates them from one another. The shielding separator has a plurality of electrically non-conductive separator sections positioned between the twisted wire pairs and a plurality of electrically conductive separator sections arranged in an alternating pattern with the non-conductive separator sections along the shielding separator. Each of the conductive separator sections has one of a predetermined number of section lengths and is arranged along the shielding separator such that the conductive separator sections are substantially aperiodic with the twist rates of the twisted wire pairs. Optionally, the cable includes a continuous or discontinuous outer cable shielding system enclosing the discontinuous shielding separator and the plurality of twisted wire pairs.

Abstract: This invention discloses a stackable connector assembly, which includes a first connector, a second connector, a shielding member, a contact member, and a ground member. The second connector is placed above the first connector. The shielding member is covered on the first connector. The contact member is used for connecting the shielding member and the ground member. This structure can reduce the electromagnetic radiation from the first connector.

Abstract: An eSATA connector includes a connector plug and a mated connector receptacle. The connector plug includes a plug member, a plug metal housing, plug data terminals and a terminal holding part, in which the plug data terminals are held, and further includes plug power terminals held in the terminal holding part, wherein the plug power terminals and the data terminals each other electrically insulated.

Abstract: A shielding shell includes an upper shell and a lower shell. The upper shell has a rear cover engaged in the lower shell, and a front cover connected to a front of the rear cover and mounted beyond the lower shell. The lower shell has a base board, two side boards protruding upward from two opposite sides of a rear of the base board, and a front board protruding upward from a front end of the base board. Two opposite ends of the front board extend sideward to form a pair of fixing boards bent rearward to lie substantially in alignment with the corresponding side boards. Wherein a free end of each of the fixing boards extends to form a fixing portion buckled into a corresponding fixing cavity defined in a front of each of the side boards for fixing the fixing board to the corresponding side board.

Abstract: A plug connector has an insulative housing, a plurality of first terminals, a plurality of second terminals and a positioning bracket. The terminals are mounted in the insulative housing and each terminal has a soldering portion. The positioning bracket is mounted on the insulative housing and has a positioning protrusion having a top surface and a bottom surface respectively holding the soldering portions on two levels. The soldering portions are arranged in two levels to facilitate soldering wires to the soldering portions.

Abstract: A connector and circuit board suitable for multiple transmission interfaces, which can be applied to storage devices or computer devices is disclosed. The connector device includes a connector case, and two transmission interfaces respectively disposed on upper and lower sides of the connector case. One end connector case serves to electrically connect with the circuit board, and another end serves as the transmission interfaces complying with at least two different specifications. Thus, the users may select suitable transmission interface according to actual needs.

Abstract: Receptacle connectors and male plug connectors having a reduced size in at least one direction can be provided. One example reduces height by not including a center contact tab or tongue, but instead places contacts on an insulator that is adjacent to a bottom portion of the receptacle. Another example may reduce width by reducing contact pitch, and may use a particular shape of contact to achieve god signal quality. Receptacle connectors and male plug connectors can also provide support for one or more new high-speed communication standards, such as USB 3.0 and DisplayPort. Methods can provide one or more standardized connector components to speed connector design and manufacture of new electronic devices such as media players, thus reducing their time to market.

Abstract: A connector adaptor suitable for various transmission protocols is disclosed. The connector includes a hollow case, two positioning sets, two terminal sets. The two positioning sets are formed on the upper side and a lower side of said hollow case. The two terminal sets are connected to the positioning sets respectively, and said terminal sets are respectively connected to a flat face of said positioning set for an electrical connection. The hollow case is made in a plastic injection process.

Abstract: An electrical connector (100) has an insulative housing (10) including a top wall (12), a bottom wall (13) and a pair of opposite side walls (14), an upper shell (31) and a lower shell (32) locking with the upper shell. The upper shell has a top plate (311) and a pair of side plates (312) at least partially enclose the bottom and the side walls of the housing. The upper shell has a bottom plate (321) and a pair of side wings (322) at least partially enclosing the top and the side walls of the housing. Each side wall of the insulative housing includes a flange portion (17) protruding outwardly therefrom. The side wing of the lower shell are guided onto the side plates of the upper shell by the flange portions and partially overlapping with the upper shell.

Abstract: An electrical connector for electrical connecting a camera module with a circuit board includes an insulative casing and a number of signal terminals. The insulative casing includes a bottom wall and a number of side walls. A receiving space is defined between the bottom wall and side walls for receiving the camera module. The bottom wall defines a receiving opening thereon. The signal terminals are fixed on the side walls and extending beyond the bottom wall configured for electrically connecting with the camera module and the circuit board. The present invention also relates to a camera device having the same.

Abstract: A cable connector assembly (100) includes an insulated housing (2), a plurality of contacts (3) received in the insulated housing, a spacer (4) assembled to the insulated housing and a metallic shell (1) enclosing the insulated housing. The insulated housing (2) comprises a main portion (21) and two arms (22) extending from both sides of the main portion backwards, and at least one of the two arms defines a latching hole (2213), the spacer has a projecting portion (4203) locked with the latching hole (2213) in the arm.

Abstract: An electrical connector includes: a plastic base formed with terminal slots; terminals disposed in the terminal slots; a metal sheath disposed at one end of the plastic base and formed with two lateral planes and a middle projection; at least one screw hole member disposed on one side of the plastic base and connected to the lateral plane, wherein the screw hole member has first and second plates, a surface of the first plate is disposed at the one end of the plastic base and is formed with a screw hole on the middle of the surface of the first plate, and the second plate is integrally connected to one end of the first plate and extends to the other end of the plastic base; and at least one connecting element having a lower section formed with a connection portion, and a top end connected to the second plate.

Abstract: An electric connector has a housing, signal and ground contacts disposed in the housing and a metal shell surrounding the housing. The metal shell has a support segment covering a top surface of the housing and with a first edge positioned adjacent to a back surface of the housing, and a second edge positioned adjacent to a front surface of the housing. The ground contacts are formed integral with and extend laterally from the second edge of the support segment by a one-step stamping process.

Abstract: An extension to USB includes an insulative tongue portion and a number of contacts held in the insulative tongue portion. The contacts have four conductive contacts and a plurality of differential contacts for transferring differential signals located behind/forward the four standard USB contacts along a front-to-rear direction. The four conductive contacts are adapted for USB 2.0 protocol and the plurality of differential contacts are adapted for non-USB 2.0 protocol. The extension to USB is capable of mating with a complementary standard USB 2.0 connector and a non-USB 2.0 connector, alternatively.

Abstract: An electrical connector (100) for insertion of an electrical plug, includes an insulative housing (1) having a receiving cavity (13) to receive the electrical plug in a front-to-rear direction and a plurality of receiving slots (14) communicating with the receiving cavity, and a set of terminals (2) received in the receiving slots and including first terminals (21). Each first terminal has a vertical flat first base portion (212) retained in the insulative housing and extending along the front-to-rear direction, a first contacting portion (211) protruding into the receiving cavity to electrical contact with the electrical plug, and a first tail portion (213) to be mounted on a printed circuit board (PCB). Both the first contacting portion (211) and the first tail portion (213) simultaneously extend from one of an upper edge and lower edge of the first base portion (212).

Abstract: A connecting element (1) for shielded data and/or telecommunications cables (2, 3), with a metal housing (10) and with at least one connector jack (15, 16), where contact means (20, 21) are provided for contacting the metal housing (10) with a plug housing (6, 7), particularly with the plug housing (6, 7) of an RJ-45 plug (4, 5), and where at least one spring tab (20, 21) forming a single piece with the metal housing (10), or with a part (8, 9) of the metal housing, is provided as the contacting means (20, 21).

Abstract: A shielded subminiature connection assembly having two subminiature connectors with housings provided with means of locking, two molded thermoplastic half-shells having a high contact density miniature sub-assembly with a molded thermoplastic insulating body provided with contact cavities for the positioning and retention of contacts, a back plate provided with a contact-retaining clip and whose sidewalls comprise projecting members, a molded thermoplastic receptacle shell including a flange provided with oblong apertures into which the projecting members of the back plate are locked. The disclosed embodiments also concern the process of forming the connection assembly.

Abstract: A connector and an electronic apparatus and a combination comprising the connector for first and second joints are disclosed. The connector includes a base, a plurality of first pins, and a plurality of second pins. The base has a first and a second connecting surface. The first pins are disposed on the first connecting surface and the quantity of the first pins is the same as the pin quantity of the first joint. In addition, the second pins are disposed on the second connecting surface and the total quantity of the second pins and the first pins is the same as the pin quantity of the second joint. The base may include two convex parts and a concave part. The first connecting surface and the second connecting surface are disposed on surfaces of the two convex parts respectively. The concave part accommodates the two convex parts.

Abstract: An electrical connector includes a housing and a lead frame held by the housing. The lead frame includes a terminal extending along a length between a mating end portion and a mounting end portion. The terminal is at least partially surrounded by a dielectric core extending a length along at least a portion of the length of the terminal. The dielectric core is metallized such that the core is at least partially surrounded by an electrically conductive shell.

Abstract: A plug-side connector to be connected to a jack-side connector is provided that includes a conductive housing configured to surround an electromagnetically shielded projecting part of the jack-side connector upon the plug-side connector being connected to the jack-side connector; and a leaf spring member for a plug-side electromagnetic shield, the leaf spring member including multiple conductive leaf spring pieces arranged at a pitch enabling formation of the electromagnetic shield, the leaf spring member being provided to the housing so that the leaf spring pieces are arranged in a width direction of the housing on the interior side of the housing. The leaf spring pieces are configured to come into elastic contact with a surface of the projecting part of the jack-side connector upon the plug-side connector being connected to the jack-side connector.

Abstract: One embodiment of the present computer network device comprises a subassembly. The subassembly includes a support plate, a standoff extending from the support plate, a printed circuit board (PCB) secured to the standoff, an electromechanical connector secured to the PCB, an electromagnetic interference (EMI) cage secured to the PCB, and an EMI gasket engaging the EMI cage. The computer network device further comprises a guiding and retaining member that engages the support plate and assists in securing the subassembly within an enclosure. In a method of assembling the computer network device, the subassembly is first assembled before the subassembly is secured within an enclosure. Relative motion of the PCB and the standoffs is thus eliminated during the assembly process.

Abstract: The present invention concerns a multi-contact connector element comprising at least one of electrical and optical contacts, a case and an insulating insert comprising more than two cells for receiving contacts, wherein the case is made from an electrically nonconductive material, and wherein the connector element comprises an envelope made from an electrically conductive material, housed inside the case and defining a housing for the insert.

Abstract: A communications outlet includes a plurality of electrically conductive paths arranged in pairs and an electrically conductive shield. A plurality of conductive elements connected to a corresponding conductive path and the conductive elements configured, for each pair, to balance a capacitive coupling between the electrically conductive shield and the conductive paths of that pair.

Abstract: An electrical connector assembly includes a printed circuit board, a header coupled to the printed circuit board, and an electrical cable termination configured to mate with the header. The printed circuit board has a printed circuit board ground contact. The header includes an insulative housing and a plurality of contact pins disposed in the insulative housing. The header and electrical cable termination are configured such that the electrical cable termination makes electrical contact with at least one of the contact pins and the printed circuit board ground contact when the header and electrical cable termination are in a mated configuration. The electrical connector assembly may include a conductive shield at least partially enclosing the header and electrical cable termination.

Abstract: An electrical connector including a receptacle having receptacle having at least one shielding member and at least one electrically conductive surface. The shielding member includes at least one grounding member and at least one latching member. The grounding member is in physical contact with the electrically conductive surface and the latching member is configured to detachably engage a latching feature of a mating receptacle. A connector system and a method for shielding a connector are also disclosed.

Abstract: In an active antenna system, two or more amplification chains are contained on one integrated circuit substrate or in one hybrid circuit. The amplification chains can be connected to at least one of a plurality of radiating elements. The integrated circuit or hybrid circuit can be incorporated into an active antenna connector, which can be electrically connected to a radiating element or a receiver system, for example. A first integrated circuit or hybrid circuit can be exchanged with a second integrated circuit or hybrid circuit in a connector to adjust properties of an active antenna system.

Abstract: A low-cost connector comprises a pair of first socket side shields covering two outer surfaces of a socket along a direction a terminal extends. The first socket side shield members are detachable from the socket. A pair of second socket side shield members cover two other outer surfaces of the socket in the back-and-forth direction. Thus, the outer surfaces of the socket can be covered by the second socket side shield members and the first socket side shield members according to dimensions of the terminal in the direction the terminal extends. Accordingly, if the dimensions of socket in the direction the terminal extends differ according to a number of terminals, it is easier and cheaper to manufacture shield members than to cover the socket outer surfaces by one shield member.

Abstract: An upright electrical connector (100) includes an insulative housing (1) having a base portion (11) defining a mounting face (102), a first and a second tongue portions (312, 322) defining a mating face (101) and extending beyond the base portion; a number of first and second contacts (21, 20) retained in the insulative housing, the first contacts having first contacting portions (212) held in an inner surface of the first tongue portion, the second contacts having second contacting portions (202) held in an inner surface of the second tongue portion; an inner shell (5) mounted to the base portion, the inner shell defining four upwardly-extending side walls (51) enclosing the first and the second tongue portions to form an inner receiving space (53) being open through the mating face; and an outer shell mounted to the base portion, the outer shell comprising four upwardly-extending side walls (61) enclosing the base portion; the first and the second tongue portions are perpendicular to the mounting face.

Abstract: A receptacle and plug connector assembly includes a receptacle having a housing with a plurality of terminals received therein and a plug mated with the receptacle and having an insulator with a plurality of contacts disposed therein. Each terminal has a base portion and two elastic arms extending from the base portion. Free ends of the two elastic arms respectively protrude towards each other to form projections. Each contact has a substantially U-shaped contacting portion received between the elastic arms and pressed by the projections of the elastic arms. Therefore, the terminals of the receptacle contact the contacts of the plug stably.

Abstract: A multi-port connector for integrating the transmission interfaces of DisplayPort and USB, includes a seat body, a DisplayPort, a USB connector, a sealing lid, and a hollow outer shell. At an upper portion of the seat body, there is a rabbet, under which a connecting trough is arranged. At back of the seat body, there is a recessing part, at upper portion of which an assembling opening is arranged, which is communicated to the rabbet. A plurality of fissures are arranged on a wall of the recessing part. The DisplayPort is assembled in the rabbet, while the USB connector is assembled in the connecting trough. The sealing lid is assembled and connected in the recessing part at back of the seat body. A bulger arranged at the sealing lid is assembled and connected in the assembling opening of the recessing part. On a wall surface of the sealing lid, there are a plurality of striping ribs, which are snapped into the fissures.

Abstract: The present invention provides a connector which can take an EMI measure for the first and second housings and can move the second housing with respect to the first housing. The connector comprises a plug which is provided so as to be movable with respect to the socket; a plurality of socket terminals which are resiliently deformed with a movement of the plug; a first socket side shield member which covers an outer circumference surface in the width direction of the socket; a plurality of plug terminals which are in contact with each of the socket terminals when the plug is mated with the socket; a plug side shield member which covers an outer circumference surface in the width direction of the plug; and first and second shield conductive portions which are in contact with each of the shield members and are resiliently deformed as the plug is moved.

Abstract: A connector for use in terminating communications cables including electrical contacts (42) arranged to receive wires (30) of a communications cable (60), at least one cover (12, 22) pivotally connected with the connector and having wire-receiving spaces (14, 24), wherein the cover is arranged to move pivotally to bring wires positioned in its wire-receiving spaces into engagement with the contacts (42).

Abstract: The present invention relates to a greeting card with the capability of connecting to and interacting with a device. More particularly, this invention relates to a card having a connector that permits a memory device coupled with the card to interact with a device, such as a multimedia player or computing device. The memory device may include a file, such as a video or image, that has been stored by the card purchaser and that can then be executed on the device for the enjoyment of the card recipient. The memory device may store a file for the greeting card recipient to access or view on a device, such as a multimedia player, when the card is connected to the device. Additionally, the memory device may include executable software that causes the device to perform an action, such as opening up a webpage, once the card is connected to the device. In such an embodiment, the card may be a gift card, such as a standard gift card issued by retailers.

Abstract: A cable assembly (1000) includes a housing (1) has a receiving space (10), said receiving space including a hollow portion and a mating port located in front of the hollow portion; a spacer (4) located in the receiving space; a first and second printed circuit boards (31, 32) partially enclosed within the spacer and arranged apart from one another, both the first and second printed circuit boards having mating interfaces extending into the mating port and mounting portions disposed in the hollow portion; a metallic plate (2) assembled to the spacer and disposed between the pair of first and second printed circuit boards; a plurality of cables (7) coupled to the mounting portions of the pair of first and second printed circuit boards, respectively.

Abstract: A shielded electrical connector is disclosed that includes a receptacle having a outer ground shield surrounding a dielectric cover. The dielectric cover includes a plug reception cavity and has an electrical contact and an inner ground shield disposed therewithin. The outer ground shield includes grounding features configured to ground the outer shield to a module wall and attachment features configured to attach and ground the outer shield to a substrate.

Abstract: A cable connector assembly includes an insulative housing(1) with a number of passages(101), a shell(3) covering the insulative housing, a number of contacts(2) received in the passages of the insulative housing, and a spacer(5) assembled to the insulative housing. The contact includes a retaining portion(22), an extending portion(25) extending form the retaining portion and a soldering portion(23) bending from the end of the extending portion, and the all soldering portions are coplanar. The spacer includes a pressing portion(52) and a vertical wall(53). The pressing portion presses on the retaining portion of the contact, and the vertical wall engages with the soldering portion of the contact.

Abstract: An electrical connector (100) includes a connector housing (1), a plurality of contacts (2) received in the connector housing, a PCB (3) having a row of first conductive pads (34) and a row of second conductive pads (35), and a cable having a plurality of conductors. The first conductive pads and the second conductive pads are formed on two opposite surfaces of the PCB in a back to back relation. The conductors of the cable connect with the first conductive pads and the second conductive pads connect with the contacts.

Abstract: A connector housing includes a housing and a shield. The housing has an interior chamber extending between housing mating and back ends. The inner surface has loading and transition portions, with the loading portion located proximate to the housing mating end and the transition portion located proximate to the housing back end. The shield is shaped to fit in the interior chamber and extends between a shield mating end and a shield back end. The shield back end includes a ground contact opening. The shield includes a rim protruding from the shield back end that extends around a portion of an outer periphery of the shield back end. The rim includes a plurality of rim ends separated by a gap. The rim engages the transition portion to prevent the shield being removed through the housing mating end and the gap exposes a portion of the transition portion.

Abstract: An electrical connector includes a printed circuit board, a plug fixedly and electrically connected to the printed circuit board, an electromagnetic shielding cover configured for encompassing the printed circuit board, a reinforced frame configured for framing the plug and the electromagnetic shielding cover to the circuit board and, a housing configured for housing the printed circuit board, the plug, the electromagnetic shielding cover and the reinforced frame therein.

Abstract: An electrical connector assembly of the invention comprises a butt plug with a contact portion and an electrical connector capable of matching the butt plug. One side of the contact portion has at least one engaging point. The electrical connector comprises an insulating body and a shield casing with at least one bottom wall. A side wall extends upward from at least one side of the bottom wall and the side wall covers at least one part of the insulating body. An opening, which is located at the front of the bottom wall and the side wall, is used for receiving the contact portion. The bottom wall has at least one fastening hole matching the engaging point. Enable the engaging point to slide into the corresponding fastening hole in parallel. When the butt plug is inserted into the shield casing once, the invention can ensure good electrical connection.