Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a first circuit board, an expansion slot, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, and first ground pins. A second edge connector is arranged on a top edge of the second circuit board and includes second power pins connected to a power unit, and second ground pins. A third edge connector is arranged on a bottom edge of the second circuit board and includes third power pins connected to the power unit, third ground pins, and signal pins connected to a display unit.

Abstract: A serial advanced technology attachment dual-in-line memory module (SATA DIMM) assembly includes a SATA DIMM module with a first circuit board, an expansion slot, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, and first ground pins. A second edge connector connected to the expansion slot is arranged on a top edge of the first circuit board and includes second power pins connected to the first power pins, second ground pins, and four first signal pins connected to the control chip. A third edge connector engaged in the expansion slot is arranged on a bottom edge of the second circuit board and includes third power pins and four second signal pins connected to the second storage chips, and third ground pins.

Abstract: An electrical connector adapted to be straddle mounted to a PCB and a method for mounting such an electrical connector. The electrical connector includes a housing defining a datum to abut the bottom side of the PCB and an upper row of contacts fastened in the housing. Each upper contact has a flexible mounting portion extending from the housing to abut the top side of the PCB. The mounting portions of the top contacts and the datum of the housing is adapted to clip the PCB thereby positioning the electrical connector related to the PCB.

Abstract: A mounting apparatus includes a chassis, a mounting member, a mounting tray received in the chassis, and a securing device. The chassis includes a front plate and a positioning member attached to the front plate. The mounting member is used to secure an expansion card and includes a flange. The mounting tray includes a front panel and a retaining panel connected to the front panel. The securing device includes a first securing member and a second securing member. The first securing member is rotatably attached to the front plate, and the second securing member is rotatably attached to the first securing member. The flange is located between the retaining panel and the first securing member. The positioning member abuts the second securing member, to prevent the second securing member from being disengaged from the first securing member.

Abstract: Provided is a connector to be securely fixed on a board, especially, the connector having a high-strength shell prevented from detached from the connector. The connector has a mating portion, a plurality of the contacts, a holding member holding the contacts and a shell and to he connected with a mating connector in a front-back direction. The mating portion is positioned in forward part of the connector. The holding member is formed with a protrusive portion protruding back ward. The protrusive portion is formed with a receiving portion. An edge of the shell is formed a stopper portion. The stopper portion and the receiving portion face to each other in the front-back direction. The contact has a contact-fixing portion fixed on the board. The shell has a shell-fixing portion fixed on the board. A distance between the shell-fixing portion and the mating portion is larger than another distance between the contact-fixing portion and the mating portion.

Abstract: A display card assembly includes a display card with a first circuit board, a straight through connector, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, first ground pins, and first signal pins. A second edge connector connected to the straight through connector is arranged on an end edge of the first circuit board adjoining the bottom edge and includes second power pins connected to the first power pins, second ground pins, and second signal pins connected to the control chip. A third edge connector engaged in the straight through connector is arranged on an end edge of the second circuit board and includes third power pins and third signal pins connected to the second storage chips, and third ground pins.

Abstract: A pluggable module includes a housing having a locating opening that is at least partially defined by a wall of the housing. A circuit board is at least partially disposed within the housing and includes an edge and a mating contact. An electrical connector is mounted to the circuit board and includes an electrical contact having a mounting segment that is configured to be electrically connected to the mating contact of the circuit board. The electrical connector includes a dielectric connector body that holds the electrical contact. The body has a base that is coupled to the edge of the circuit board and a locating boss that extends outwardly on the base. The locating boss is received within the locating opening of the housing and includes a crush rib that extends outwardly from the locating boss. The crush rib is deformed and engaged with the wall of the housing.

Abstract: A daughter card assembly including a printed circuit board that defines a board plane and has a mating edge, a trailing edge, and a side edge that extends between the mating and trailing edges. The mating edge extends lengthwise along a longitudinal axis and has electrical contacts positioned therealong. The mating edge is configured to engage a card connector when the mating edge is moved in an insertion direction that is substantially perpendicular to the longitudinal axis. The daughter card assembly also includes a latching sub-assembly that is coupled to the circuit board and extends along the side edge. The latching sub-assembly includes a coupling arm that extends in the insertion direction and has a latch end that is proximate to the mating edge. The latch end is configured to removably couple to the card connector.

Abstract: A connector mechanism includes a circuit board whereon an electrical contact and a hole are formed, a socket where an end of a board card is inserted, a fixing base disposed on a side of the socket, a positioning component disposed on the fixing base and inserted into the hole at an end so as to fix the fixing base on the circuit board, and a connecting component detachably installed on the fixing base. The connecting component includes an engaging portion for engaging with the fixing base and contacting with the electrical contact, and a connecting terminal installed on an end of the engaging portion for contacting with a terminal on the other end of the board card as the engaging portion engages with the fixing base and the end of the board card is inserted into the socket.

Abstract: An electronic apparatus includes: a first connector; a second connector; a first electronic unit connectable to the first connector; a second electronic unit connectable to the second connector; and a printed circuit board that includes the first connector and the second connector between a first extended center line toward a unit board of the first electronic unit and a second extended center line toward a unit board of the second electronic unit on a first side of the printed circuit board when the first and second electronic units are connected to the first and second connectors, respectively.

Abstract: An electrical connector and electronic apparatus using the same are provided. The electrical connector includes a first set of terminals, a second set of terminals and an insulating body. The insulating body has a first mating portion and a second mating portion. First mating portion includes an inward wall surface. First contacts of the first set of terminals and first contacts of the second set of terminals are disposed in the inward wall surface of first mating portion. Second mating portion has an outward wall surface. Second contacts of the first set of terminals and second contacts of the second set of terminals are arranged on the outward wall surface of the second mating portion. The first contacts of the first set of terminals and the first contacts of the second set of terminals elastically contact to the corresponding pads of the PCB board without bonding.

Abstract: A motherboard assembly includes a serial advanced technology attachment dual-in-line memory module (SATA DIMM) with a circuit board, a memory slot, and an interface. An edge connector is set on a bottom edge of the circuit board. A SATA connector is arranged on the circuit board, and connected to a control chip and the interface, enabling a motherboard communication with the SATA DIMM module.

Abstract: A display card assembly includes a display card with a first circuit board, a straight through connector, and an expansion card with a second circuit board. A first edge connector is arranged on a bottom edge of the first circuit board and includes first power pins connected to a control chip and first storage chips, first ground pins, and first signal pins. A second edge connector connected to the straight through connector is arranged on an end edge of the first circuit board adjoining the bottom edge and includes second power pins connected to the first power pins, second ground pins, and second signal pins connected to the control chip. A third edge connector engaged in the straight through connector is arranged on an end edge of the second circuit board and includes third power pins and third signal pins connected to the second storage chips, and third ground pins.

Abstract: Connector receptacles that have a reduced height when combined with a printed circuit board and reduce wasted space inside an electronic device. One example provides a connector receptacle having contacts that may connect to edge contacts along an edge of a printed circuit board. This edge may be formed along a side of printed circuit board, by a hole or opening in a printed circuit board, or by a notch in a printed circuit board. Edge contacts may have straight surfaces, rounded surfaces, or they may have other types of surfaces. Connector receptacle contacts may have a “U,” fishhook, or other shape.

Abstract: A pluggable module includes a housing having a locating opening that is at least partially defined by a wall of the housing. A circuit board is at least partially disposed within the housing and includes an edge and a mating contact. An electrical connector is mounted to the circuit board and includes an electrical contact having a mounting segment that is configured to be electrically connected to the mating contact of the circuit board. The electrical connector includes a dielectric connector body that holds the electrical contact. The body has a base that is coupled to the edge of the circuit board and a locating boss that extends outwardly on the base. The locating boss is received within the locating opening of the housing and includes a crush rib that extends outwardly from the locating boss. The crush rib is deformed and engaged with the wall of the housing.

Abstract: A socket receptive to insertion of an integrated circuit (IC) printed circuit board (PCB) includes a housing, conductors, and vents. The housing has first and second sides corresponding to a length of the IC PCB. The conductors are mounted within the housing to mate with corresponding conductors of the IC PCB upon insertion of the IC PCB into the housing, and have leads adapted to being soldered to corresponding conductors of a host PCB. The vents are within the housing and are adapted to dissipate heat resulting from soldering the leads to the host PCB to minimize warping of the housing during soldering. The vents are further adapted to compensate for a mismatch between a coefficient of thermal expansion (CTE) of the housing and a CTE of the host PCB during soldering, regardless of the CTE of the host PCB.

Abstract: An electrical connector includes an insulating housing defining a mating slot, a plurality of conductive terminals retained in the insulating housing and a shielding shell attached to the insulating housing. The terminals include contacting portions exposed to the mating slot and solder portions. The shielding shell includes a pair of connecting portions integrally extending in the mating slot, a locking portion integrally extending from each connecting portion and exposed to the mating slot and a releasing portion integrally extending from each connecting portion to the shell with an operating portion at one outer side of the connector. The locking portions move away from the mating slot in response to a movement of the releasing portions to the mating slot.

Abstract: A connector assembly includes a peripheral component interconnect express (PCI-E) connector and a fixing member. A groove is defined in the PCI-E connector and extends through an end of the PCI-E connector. The fixing member is fixed to the end of the PCI-E connector. A receiving slot is defined in the fixing member communicating with the groove of the PCI-E connector. The fixing member cooperates with the PCI-E connector to receive and protect a PCI-E card which has a length greater than the length of the PCI-E connector.

Abstract: Provided is a housingless connector in which a plurality of cantilevers arranged in a comb shape and functioning as contacts is hardly damaged. A receptacle connector (housingless connector) is formed of a single metal plate and used to be mounted on a receptacle-side substrate. The receptacle connector includes a plurality of cantilevers arranged in a comb shape and functioning as contacts, and an outer frame body surrounding the cantilevers. The outer frame body includes a pair of side plates sandwiching the cantilevers in a direction parallel to a connector mounting surface of the receptacle-side substrate, and a top plate disposed on an opposite side of the receptacle-side substrate with the cantilevers interposed therebetween.

Abstract: A straddle mount connector is provided for edge mounting to a circuit board of a pluggable module. The straddle mount connector includes a dielectric connector body having a base and a plug extending from the base. The base is configured to be coupled to an edge of the circuit board. The plug has opposite first and second sides and a plate cavity that extends within the plug between the first and second sides. The plug is configured to be received within a receptacle of a receptacle connector. Electrical contacts are held by the connector body. The electrical contacts include mating segments. The mating segments of a first group of the electrical contacts are arranged in a first row that extends a length along the first side of the plug. The mating segments of a second group of the electrical contacts are arranged in a second row that extends a length along the second side of the plug. A ground plate is held within the plate cavity of the plug of the connector body.

Abstract: A straddle mount connector includes a connector body having a base and a plug. The plug extends a length from the base to an end surface of the plug. The plug has opposite first and second sides and is configured to be received within a receptacle of a receptacle connector. Electrical contacts are held by the connector body and include mating segments arranged in a row that extends along the first side of the plug. The mating segments extend lengths along the first side of the plug from the base to contact tips. The contact tip of a first of the electrical contacts is positioned closer to the end surface of the plug than the contact tip of a second of the electrical contacts such that the mating segment of the first electrical contact mates with a corresponding mating contact before the mating segment of the second electrical contact.

Abstract: Provided is a backlight unit of a liquid crystal display (LCD). The backlight unit includes: a plurality of light guide plates (LGPs) arranged in M layers and separated from each other by a predetermined gap, wherein M is a natural number equal to or greater than two, a light source unit disposed on at least one side surface of each of the LGPs and including N light source blocks whose brightnesses are controlled individually, and wherein N is a natural number equal to or greater than two. The backlight unit further includes a plurality of light output regions defined by each of the LGPs being divided into a plurality of regions according to a distance from the light source unit and by a plurality of light output patterns being formed in some of the regions, and wherein the light output regions do not overlap each other in a stacking direction of the LGPs and are arranged to correspond to a whole surface of the LGPs.

Abstract: The card connector can adequately detect the state in which an electronic device such as a memory card to be inserted and removed is fitted, and saves the footprint for mounting the card connector. With this card connector, a card detection switch detects a state in which a memory card is fitted in an accommodating part of a housing through an insertion slot. The card detection switch has movable terminals and fixed terminals, and the movable terminals each have a card contact part which is displaced by being pressed by the memory card to be inserted, and a movable contact part which is displaced in a same direction as a direction in which card contact part is displaced following displacement of the card contact part. The fixed terminals are each arranged in the housing to project in a direction to interest the direction in which the movable contact part is displaced, and is slid against by the movable contact part when the movable contact part is displaced.

Abstract: A card edge connector includes an elongated housing extending along an elongated direction thereof, and having a first housing half, a second housing half being discrete from the first housing half, and a central slot formed between the first and the second housing halves. A plurality of contacts are retained in the housing, and each has a contact portion protruding into the central slot. A width of the central slot could be adjusted before mounting the card edge connector to a mother board for receiving different daughter boards with different thicknesses.

Abstract: A mounting apparatus includes a bracket, a first circuit board, a securing member, and a second circuit board. The bracket includes a first sidewall, and an end wall perpendicularly extending from a front end of the first sidewall, for fixing a stop plate of a first expansion card. The first circuit board is mounted to the first sidewall of the bracket adjacent to the end wall. A first expansion slot is installed on the first circuit board for engaging with the first expansion card. The securing member is detachably mounted to the first sidewall behind the first circuit board and away from the end wall, for fixing a stop plate of a second expansion card. The second circuit board is detachably mounted to the first sidewall adjacent to the securing member. A second expansion slot is installed on the second circuit board for engaging with the second expansion card.

Abstract: The invention relates to a printed circuit board plug-type connector (1), comprising a housing, in which contact elements (6) are arranged, wherein the contact elements (6) have a first contact part at one end and a second contact part at the opposite end, wherein the first contact part is in the form of a fork contact (7, 8), wherein the second contact part is in the form of a contact which makes contact with the printed circuit board, and an associated connection module (30) with a printed circuit board plug-type connector (1).

Abstract: A computer includes an expansion card, a mother board and a connector. The mother board includes an expansion slot thereon. The expansion slot corresponds to the expansion card. The connector connects the expansion card and the expansion slot.

Abstract: A semiconductor device comprises: a plurality of semiconductor chip; a socket; and a mounting board equipped with the socket. Each of the semiconductor chips has a major surface, a back surface and a plurality of connection terminals on the major surface. The socket has internal connection terminals inside and external connection terminals outside, and the internal connection terminals are in contact with the connection terminals of the semiconductor chips.

Abstract: An embodiment is a method and apparatus to provide a multi-function module. A circuit board has a form factor and a connector edge corresponding to a first interface standard. The connector edge includes first and second groups of pin-outs that are mapped to pin-out assignments compatible with the first interface standard and a second interface standard, respectively. A first interface is provided on the circuit board for a first set of devices connected to the first group of pin-outs to operate according to the first interface standard. A second interface is provided on the circuit board for a second set of devices connected to the second group of pin-outs to operate according to the second interface standard.

Abstract: An electrical assembly comprises a mounting bracket lift assembly and an electrical center. The electrical center is attached to the mounting bracket lift assembly for plugging wiring harness end connectors into the electrical center. The electrical center comprises a lower housing, a circuit board sub-assembly, an upper housing, electrical components such as fuses and relays that plug into the upper housing and a cover. The circuit board sub-assembly includes a power bus bar that provides a power path for the various electrical circuits of the vehicle via the circuit components carried on the circuit board. Three power bus bars that are configured, oriented and located to reduce the foot print of the electrical center and/or to improve the dissipation of heat generated by the electrical center are disclosed.

Abstract: A flexible printed circuit board includes a flexible sheet and a rigid substrate attached to the flexible printed circuit board. The flexible printed circuit board includes a first surface and an opposite second surface. A number of electrical connecting locations are defined on the first surface of the flexible printed circuit. The rigid substrate includes a third surface and an opposite fourth surface and is disposed on the flexible sheet with the fourth surface contacting the first surface of flexible sheet. The rigid substrate defines a number of through holes corresponding to the electrical connecting location to allow the electronic components to pass through.

Abstract: An electrical field device for use in industrial control with a housing, with at least one input, at least one output and an electronic circuit with a microcontroller, a memory and a circuit board. The electrical field device is easily adapted to different functions and conditions of use in that an opening is formed on one side of the housing for insertion of an electronic expansion module which has at least one circuit board, and in that the circuit board has a contact region with contacts for mechanical and electrical contact-making with mating contacts connected to the circuit board of the expansion, module and a circuit board recess formed such that an inserted expansion module does not have any conductive connection to the field device except in the contact region so that reliable electrical isolation between the interior of the device and the user is ensured.

Abstract: A connector assembly includes a peripheral component interconnect express (PCI-E) connector and a fixing member. A groove is defined in the PCI-E connector and extends through an end of the PCI-E connector. The fixing member is fixed to the end of the PCI-E connector. A receiving slot is defined in the fixing member communicating with the groove of the PCI-E connector. The fixing member cooperates with the PCI-E connector to receive and protect a PCI-E card which has a length greater than the length of the PCI-E connector.

Abstract: A computer includes an expansion card, a mother board and a connector. The mother board includes an expansion slot thereon. The expansion slot corresponds to the expansion card. The connector connects the expansion card and the expansion slot.

Abstract: A midplane of a communication device, includes the first connectors and the second connectors which connect with each other via high-speed traces, the first connectors arrange in parallel at one side of the midplane, the second connectors arrange in parallel at the other side of the midplane and in parallel with the first connectors. The wiring of high-speed traces between the first connectors and the second connectors can be disposed on the whole midplane, so that it avoids the high density of wiring in part of midplane, reduces the number of layers of the midplane and the complexity of design, and reduces the crosstalk in signals. And the cooling of the whole communication device can be accomplished by only one heat dissipation system, it reduces the complexity of design of the communication device. The area between each frames of the midplane is provided to allocate electrical power in the communication device with two or multiple frames, it reduces the costs of the communication device.

Abstract: A circuit board edge connector includes an insulative housing and two opposing mating ends with a plurality of conductive terminals supported by the housing and extending between the two ends. One end of the connector mates with an opposing connector and the other end has a slot disposed therein that receives the mating edge of a printed circuit card or board. The terminals at the end of the connector extend outwardly in a cantilevered fashion and they terminate in free ends that contact conductive pads on the edge of the circuit card. A preload cap is provided that includes two parts that interfit with each other and with the circuit card mating end of the connector. These preload caps engage the terminal free ends and impart a preload to the terminals so that the circuit card may be easily inserted into the connector slot and the caps are subsequently removed from the connector.

Abstract: An electronic apparatus includes: a first connector; a second connector; a first electronic unit connectable to the first connector; a second electronic unit connectable to the second connector; and a printed circuit board that includes the first connector and the second connector between a first extended center line toward a unit board of the first electronic unit and a second extended center line toward a unit board of the second electronic unit on a first side of the printed circuit board when the first and second electronic units are connected to the first and second connectors, respectively.

Abstract: The present invention relates to an FPC connector for electrically connecting an FPC to contact portion of a wirings printed on a PCB, and to an FPC connection method using the same, wherein an FPC (10) is inserted into a housing (110) so that the contact portion of the FPC (10) may come in direct contact with a contact portion (2a) of the PCB, and an pressing member pressing the FPC (10) on the PCB so as to directly contact the FPC (10) to the PCB (1).

Abstract: The invention relates to a printed circuit board plug-type connector (1), comprising a housing, in which contact elements (6) are arranged, wherein the contact elements (6) have a first contact part at one end and a second contact part at the opposite end, wherein the first contact part is in the form of a fork contact (7, 8), wherein the second contact part is in the form of a contact which makes contact with the printed circuit board, and an associated connection module (30) with a printed circuit board plug-type connector (1).

Abstract: A connector for a flexible cable is provided. Connection parts of an even terminal and an odd terminal alternately cross each other to align a rotation center with the center of an X-shape. Operation parts of the terminals are divided into rotation start sections and rotation end sections. Recesses of the rotation start sections are deeper than recesses of the rotation end sections. A stopper prevents reduction of a contact pressure after a rotator engages with the rotation end sections at an angle of 90°.

Abstract: An accessory printed circuit board (PCB) fixture is used in an electronic device to fix an accessory PCB. One end of the accessory PCB electronically connects to an edge connector of a main PCB located in the electronic device. The other end of the accessory PCB defines at least two holes. The accessory PCB fixture includes at least one positioning foot fixed on the main PCB, at least two latch portions and a connecting portion rigidly connecting the positioning foot with the latch portions. The latch portions match the holes of the accessory PCB to fix the accessory PCB. Each latch portion includes a supporting portion, a positioning portion and a hook. One surface of the accessory PCB is supported on the supporting portions. The positioning portions are received in the holes of the accessory PCB. The hooks are latched on the other surface of the accessory PCB.

Abstract: A compact electrical connector assembly comprises a printed circuit board having a predetermined thickness and defining a first face and a second face opposite to the first face. A low profile electrical connector sits on the first face of the printed circuit board and comprises an insulating housing defining a longitudinal central slot opened forwardly with first contacts and second contacts respectively retained at opposite sides of the central slot. A card is inserted into the central slot at an angle with regard to the printed circuit board, and then rotated from the second face to the first face of the printed circuit board until reaching to a secured position which is substantially overlapped with the printed circuit board.

Abstract: A card edge connector includes an elongated insulative housing, a plurality of first terminals, a plurality of second terminals retained in the insulative housing. The insulative housing defining a central slot, a first side wall, and a second side wall opposite to the first side wall. The first terminals each defines a first level soldering portion extend out of the first side wall in a width direction of the insulative housing. The second terminals each defines a second level soldering portion merely under the insulative housing to closer to the first soldering portions for occupying less area of a mother board.

Abstract: A board connecting connector configured to mount a mounting board on a motherboard, the board connecting connector includes a connector main body having one end fixed to the motherboard and another end including an inserting opening where the mounting board is inserted; a plurality of connector pins provided inside the inserting opening, the connector pins coming in contact with a plurality of terminals provided at an inserting side of the mounting board; and a board holding member elastically deformably standing at a side surface of the connector main body, wherein the board holding member is inserted in a position where the terminals of the mounting board come in contact with the connector pins and is engaged with an edge part of the mounting board, so that the mounting board is held in an inserting completion position.

Abstract: Techniques for ultra-high density connection are disclosed. In one embodiment, an ultra-high density connector includes a bundle of substantially parallel elongate cylindrical elements, where each cylindrical element is substantially in contact with at least one adjacent cylindrical element. Ends of the elongate cylindrical elements are disposed differentially with respect to each other to define a three-dimensional interdigitating mating surface. At least one of the elongate cylindrical elements has an electrically conductive contact positioned to tangentially engage a corresponding electrical contact of a mating connector.

Abstract: A connector having a number of SMT pads and a number of in-line package pins is provided. The connector can be applied to both a peripheral component interconnection (PCI) card and a peripheral component interconnection express (PCIE) card. The number of the connectors can be reduced when the connectors are applied to the circuit board, and more space on the circuit board are then available for other electrical elements to be disposed.

Abstract: Apparatus for PCI express add-in card retention into PCI express female connector. Said apparatus prevents wiggling of PCI express add-in cards in case the PCI express connector has retention ridge or not.

Abstract: A computer system architecture in which functionally compatible electronic components are located on modular printed circuit boards. Thus, a type of processor used by the system can be changed by replacing the printed circuit board incorporating the processor. Similarly a type of peripheral bus used can be changed simply by replacing the printed circuit board containing the peripheral controller. High-density connectors connect the circuit boards. Some embodiments of the invention use a single backplane. Other embodiments place peripheral slots on a second, passive backplane.

Abstract: An electrical system includes a backplane, a first electrical component, and a second electrical component. The backplane includes a first column of connectors, a second column of connectors, a third column of connectors, and a fourth column of connectors. The backplane also includes a first plurality of conductive paths that couple the connectors in the first column to an alternating sequence of connectors in the third column and the fourth column. Additionally, the backplane includes a second plurality of conductive paths that couple the connectors in the second column to an alternating sequence of connectors in the fourth column and the third column. The first electrical component couples to the backplane through the first column and the second column. The second electrical component couples to the backplane through the third column and the fourth column.

Abstract: A storage card socket for a bidirectional electrical connection includes a plastic base, a connection slot, a metal casing, at least one row of lower contacts and at least one row of upper contacts. The connection slot disposed at a front end of the plastic base has an inserting port and opposite top and bottom surfaces, and may be connected to a plug of a storage card. The metal casing covers the plastic base and has an opening corresponding to the inserting port of the connection slot. The lower contacts are separately arranged in the connection slot and are directed to the top surface of the connection slot. The upper contacts are separately arranged in the connection slot and are directed to the bottom surface of the connection slot.