Abstract: A portable electronic device includes a housing formed with a first receiving space, and a second receiving space communicating spatially with the first receiving space. A keyboard is disposed within the second receiving space. A pop-up mechanism is disposed within the first receiving space, and includes a hollow post body disposed within the first receiving space, and an ejecting member disposed movably within the hollow post body and abutting against a bottom side of the keyboard. The ejecting member is movable between first and second height positions when the keyboard is pressed downwardly. When the ejecting member is in the first height position, the keyboard is in a horizontal position within the second receiving space. When the ejecting member is in the second height position, the keyboard is in a tilted position tilting outwardly from the second receiving space.

Abstract: A modular unit removably mounted to a main body includes a cover openably closable relative to a unit body of the modular unit and a movable member to move to the main body in conjunction with closing of the cover. As the cover is closed with the modular unit mounted to the main body, a projection provided to the movable member pushes a lever provided to the main body, and a detector provided to the main body detects that the lever is pushed by the projection of the movable member.

Abstract: A mounting adapter for mounting a device on a support rail includes a central body, at least one rail attaching member, and at least one detent. The rail attaching member projects rearward from the body and is configured for releasable attachment to at least one of the upper and lower flanges of the support rail. The detent projects forward from the body. The detent is resiliently deflectable relative to the body and configured for releasable attachment to the electronic device.

Abstract: A holding member for connecting an electric part to an electric circuit board. The holding member has a base section, a pair of first leg sections, and a second leg section. The base section has a plate-like shape. The pair of first leg sections includes respective spring sections and hook sections. The second leg section includes a control section. The pair of first leg sections configured to be inserted into a through hole in the electric circuit board.

Abstract: A power supply unit includes a sidewall, an end wall, a resilient latch, and a block. The end wall is connected to the sidewall. A stop plate extends outward from the end wall adjacent to the sidewall. A first end of the latch is connected to an inner surface of the sidewall. A latching portion protrudes outward from the latch, to be extended out of the sidewall. The block is pivotably connected to a second end of the latch opposite to the first end. The block is extended out of the end wall between the stop plate and the sidewall. When the block is rotated, a first side of the block is capable of engaging with the stop plate, to prevent the latch from moving away from the sidewall such that the latching portion cannot withdraw from the through slot.

Abstract: A power supply assembly includes an enclosure body, a cover panel mounted to the enclosure body, a power supply unit, and a positioning element. The enclosure body includes a bottom panel, a rear panel, and a side panel. The power supply unit is mounted in the enclosure body and is prevented from moving in a first direction substantially perpendicular to the rear panel and a second direction substantially perpendicular to the side panel. The positioning element includes a plate body, a first positioning portion, and a second positioning portion. The power supply unit is sandwiched between the bottom panel and the plate body. The first positioning portion is for preventing the power supply unit from moving along a first direction substantially parallel to the bottom panel. The second positioning portion for preventing the power supply unit from moving along a second direction parallel to the bottom panel.

Abstract: A garment includes a fabric portion, an electrode fixedly connected to the fabric portion, a receptacle fixedly connected to the fabric portion, and an electronics module releasably positioned in the receptacle. The receptacle includes a receptacle housing, an electrode lead, and a receptacle contact. The electrode lead is attached to the electrode. The electrode lead engages the receptacle contact to establish an electrical connection with the receptacle contact without being attached to the receptacle contact. The electronics module includes a module contact that engages the receptacle contact when the electronics module is positioned in the socket to establish an electrical connection between the module contact and the receptacle contact.

Abstract: To provide an installation structure and an installation method of a communication equipment to reduce a number of components of the equipment and make the installation work easy. A communication equipment and an installation structure of the communication equipment to be installed, e.g., outdoors is provided. A handle for carrying the communication equipment also serves as a fixation component of the communication equipment. A method for installation of a communication equipment comprises providing an inclined portion formed at a part of bottom surface of a communication equipment and keeping the communication equipment in a forward-inclined position temporarily with the assistance of the inclined shape portion when the communication equipment is set on a fixation mount to fix the communication equipment preparatory to installation.

Abstract: An exemplary electronic device includes a case, an inner body and a pivotable arm pivotally connected on the inner body by a pivot. The case defines an opening at a first lateral side thereof and a latching hole at a second lateral side thereof adjacent to the opening. The inner body is inserted in the case through the opening. The pivotable arm includes a frame engaged in the latching hole of the case, a latching member pivotally connected to the frame by the pivot, and a resilient member. The latching member includes an inner end and an outer end at opposite sides of the pivot. The outer end of the latching member is engaged in the latching hole. The resilient member abuts against the inner end of the latching member such that the inner end of the latching member biases the inner body.

Abstract: A locking system for fitting and securing modules in a housing includes at least one module, which is surrounded by a chassis and provides a plug connection at a rear side. The front side of the module disposed opposite to the rear side provides a chassis front-plate connected to the chassis. Each module can be locked by a snap-in locking device in a housing, into which the module is pushed. In order to release the snap-in locking device, an opening tool engages in the chassis front-plate. A pulling stress can be exerted on the chassis front-plate by the opening tool, and the module can be withdrawn from the housing.

Abstract: A mounting apparatus includes an enclosure and a securing member. The enclosure includes a plate. The securing member is secured to an outer surface of the plate. The securing member includes a base board and a locking portion located on the base board. The locking portion is configured to secure a bluetooth component to the base board. The locking portion is located between the base board and the outer surface of the plate.

Abstract: A latch for use with a plug-in unit may comprise a head, a rigid body, a pin, and a lever. The head may be configured to retain the plug-in unit within a chassis associated with a rack system. The rigid body may extend from the head and be configured to interface with a user's fingers. The pin may extend transversely from both sides of the head into a case associated with the plug-in unit and be configured so that the head and the rigid body rotate around the pin as a single body when the rigid body is pulled by the user's fingers. The lever may extend from the rigid body and include a detent configured to engage the chassis. The detent may be configured to restrict the head and the rigid body from rotating around the pin when the detent is engaged with the chassis. The lever may be operable to release the detent from the chassis. The head, the rigid body, the lever, and the detent are manufactured as a single unitary body.

Abstract: An electrical module includes a rectangular carrier frame adapted for vertical transverse mounting on a horizontal support rail, a housing for mounting an electrical component in an open-top chamber contained in the carrier frame, and a rectangular electrical connector mounted on and extending across the upper end of the carrier frame, thereby to enclose the component and afford electrical connection with upper terminals thereof. The connector is pivotally connected at one end with the carrier frame for displacement between open and closed positions, and a fastener device serves to lock the connector in the closed position to the carrier frame. Alternatively, the ends of the connector are removably fastened to the carrier frame. Lower terminals of the component are connected with lower contacts arranged at the bottom of the chamber for connection with corresponding lower contacts of adjacent modules mounted in stacked relation on the support rail.

Abstract: A battery cover latch mechanism includes a battery cover forming a first clasp, a main body, a button forming a second clasp latching to the first clasp; and a resilient member assembled on the button. The main body includes an assembly portion defining a notch; and a button hole communicating with the notch. The button and the resilient member are slidably assembled in the assembly portion, the resilient member seals the notch. The invention also discloses an electronic device using the battery cover latch mechanism.

Abstract: Carrying cases (e.g., for a computer mouse) comprising a pad and a fastener (e.g., a zipper) around the perimeter of the pad that may form a mouse pad when the fastener is unfastened, and may be folded along a dimension and the fastener fastened to form a storage pouch. Such carrying cases may include a rim to prevent a mouse from sliding off of the mouse pad, an attachment mechanism that may include a strap, a snap button, or both, or a combination thereof. Embodiments are neoprene having a thickness of 1 to 5 mm, have a fold dimension between 15 and 30 cm, or both. The fastener may have a pull tab located at one end of the fold when the fastener is unfastened and at an opposite end of the fold when the fastener is fastened. Pads may be round, oval, or rectangular with rounded corners.

Abstract: A portable electronic apparatus and a casing thereof are disclosed. The portable electronic apparatus includes the casing including a base and an upper cover, and an electronic processing module disposed in the base. The base includes a first engagement structure having a lock slot. The upper cover includes a plate member and a second engagement structure mounted on the plate member. The second engagement structure includes a locking part and a detaching part connected to the locking part. The base and the upper cover are engaged such that the locking part is locked in the lock slot. The detaching part can be moved so as to detach the locking part from the lock slot. Therefore, a user can detach the locking part from the lock slot by the detaching part without any tools, which greatly reduces the complexity of the detachment of a casing of a conventional portable electronic apparatus.

Abstract: Disclosed is a displayed device having a top and bottom elongate rail and a display module for displaying alpha numeric information to passengers on a mass transit vehicle. The display modules may be mounted along a top and bottom edge directly to the top and bottom elongate rails. End caps are mounted to the ends of the elongate rail forming a structurally sound frame about the display module.

Abstract: A battery cover latching assembly comprises a battery housing member, a battery cover and a plurality of latching members. The battery cover is mounted to the battery housing and has a first surface facing the battery housing member. The battery cover has a plurality of latching portions protruding from the first surface. The latching members are mounted to the battery housing member respectively corresponding to the latching portions of the battery cover. Each latching member has a plurality of hooks corresponding to the latching portions, the hooks are latched with the latching portions.

Abstract: A battery cover latch mechanism used to releasably latching a battery cover to a housing, the battery cover latch mechanism includes a button comprising latching part, an assembly portion disposed on the housing, the assembly portion defining a latching groove and a buttonhole for receiving the button therein, a clasp disposed on the battery cover, and configured for releasably latching with the latching part of the button; and a resilient member mounted on the button, the resilient member comprising two latching portions, the latching portions latched in the latching groove. The button is slidably mounted in the buttonhole of the assembly portion such that the latching part of the button releasably latches with the clasp under the resilient member. Also disclosed is a portable electronic device using the latching mechanism.

Abstract: An electronic device comprises a casing, an electronic element, and an ejection mechanism. The casing has a receiving space and an opening. The ejection mechanism includes: a holder for holding and carrying the electronic element to pass through the opening to be exposed outside the casing; a first biasing spring biasing the holder to project outwardly from the opening; a stopping member rotatably pivoted to the casing and contactable with a projection of the holder; a second biasing spring biasing the stopping member to contact the projection, and having an elastic modulus greater than that of the first biasing spring; and a releasing member operable for driving the stopping member to detach from the projection.

Abstract: An apparatus includes a pushbutton member; a receiving member movable by the pushbutton member; and a latching member affixed to an electronic module and latchable to the receiving member. When the latching member is latched, the electronic module is movable via the receiving member. Alternatively, an apparatus is provided including a pushbutton members and a receiving section having a protruding receiving member, and movable by the pushbutton members. The receiving member may receive a latching member affixed to an electronic module. When the latching member is latched, the electronic module is movable via the receiving member. Alternatively, an apparatus includes an electronic module; and a latching member affixed to the electronic module, the latching member to latch to a receiving member. When the latching member is latched to the receiving member, the electronic module is movable via the receiving member in a direction of movement of the receiving member.

Abstract: A device for fastening an electronic module on a mounting rail and an electronic module fastened with the device on a mounting rail are provided. The device has a displaceable nose, encompassing a profile of the mounting rail together with a stationary nose provided on the back of a housing of the electronic module. The displaceable nose is configured as a clamping profile of a slide. By plugging in mechanical anchorings, the device is mounted in recesses of the housing on the back of the electronic module. The device has a spring mechanism provided to support the electronic module on the housing. A clamping force of the device on the mounting rail results from a force to the slide applied by the spring mechanism. An end of the slide opposite of the displaceable nose protrudes beyond the housing of the electronic module for the manual displacement of the displaceable nose.

Abstract: A power semiconductor module includes an electrically conductive connecting element, an accommodating region, and a clamping element which can be brought from a first position into a second position. If the clamping element is situated in the first position, a connecting region of a module-external connecting conductor can be inserted into the accommodating region and be clamped to the power semiconductor module with the formation of an electrically conductive connection between the connection region and the connecting element. For this purpose, the clamping element is brought from the first position into the second position.

Abstract: An electronic device includes a casing with a side plate and encasing a power module. The power module includes a locking member and a sliding member sandwiched between the base and the cover and abutting the locking member. The sliding member is movable relative to the locking member, between a locked position in which the locking portion of the locking member is pushed by the sliding member to extend through the cover to be locked by the side plate of the casing, and an unlocked position in which the locking portion of the locking member is pressed by the sliding member to withdraw from the side plate to allow removal of the power module from the casing.

Abstract: A mounting apparatus is configured for securing a PCI card and includes a securing member and a latch member. The securing member extends along a first direction. A protrusion is located on the securing member. The latch member is capable of securing the other end of the PCI card and defines a securing slot. The protrusion is inserted in the secured slot along a second direction perpendicular to the first direction.

Abstract: A module and tensioning means for mounting the module to a mounting rail are provided. The tensioning means are rotatably disposed about a pivot point disposed on a housing, wherein the tensioning means interact with anchoring means such that, by rotation of the tensioning means, the anchoring means are latched to a second clamping means of the mounting rail.

Abstract: Latching mechanisms for pluggable electronic devices. In one example embodiment, a latching mechanism includes a driver and a follower. The driver is configured to rotate about an axis between a latched positioned and an unlatched position. The follower is operably connected to the driver and configured to slide axially along an electronic device toward the driver as the driver is rotated from the unlatched position to the latched position and slide axially along the electronic device away from the driver as the driver is rotated from the latched position to the unlatched position.

Abstract: A system is provided that is securable to an electronic device. The system includes a module with a connection port that is configured to connect with a corresponding connection port of the electronic device. A securing structure is securable to portions of first ends of the module and electronic device to facilitate attachment of the module alongside the electronic device. When the module is attached to the electronic device with the securing structure, a side surface of the module engages with a corresponding side surface of the electronic device and the connection port of the module connects with the corresponding connection port of the connection device to establish an electrical connection between the module and the electronic device.

Abstract: The invention relates to an electrical installation unit (1) for a surface-type installation, comprising at least one module (2) for wireless data transmission, and further comprising a base plate (3), wherein the installation unit connects the module (2) directly to the base plate (3) in order to reduce the parts that are necessary and to simplify the design.

Abstract: A latch mechanism for a battery unit includes a locking mechanism having a main body, at least one engaging mechanism, and at least one abutting portion. At least one tenon extends from the main body, and at least one ramp structure having an inclined surface extends from the main body. The engaging mechanism is arranged on a battery unit to receive the tenon. The abutting portion is arranged on the battery unit and has a contacting surface projected toward the inclined surface. When the locking mechanism is moved from the locking position to the released position, the contacting surface is abutted and lifted by the inclined surface, after the tenon has been completely disengaged from the engaging mechanism. The displacement of the contacting surface enables the battery unit to displace away from the inclined surface. The instant disclosure also includes an electronic device having the latch mechanism for a battery unit.

Abstract: A fixing mechanism for fixing a magnetic element on a base wall includes a frame, a retaining member, and a blocker. The frame is adapted to be connected to and is adapted to cooperate with the base wall to define a receiving space for receiving the magnetic element, and an opening communicating with the receiving space for entry of the magnetic element into the receiving space along a first assembly direction. The retaining member is adapted to be connected to the base wall in proximity to the frame. The blocker is engaged to the retaining member, and blocks the opening.

Abstract: A printed circuit board fastening structure aims to fasten a printed circuit board which has a first bearing surface abutting and coupling on a casing and a second bearing surface. The first bearing surface is coupled with at least one support member. The support member has at least one leg connecting to the first bearing surface and an end portion formed with a fastening hole. The end portion is adjacent to the casing. A fastening element is provided to run through the casing from another side thereof to couple with the support member, thereby to fasten the printed circuit board to the casing.

Abstract: A mounting apparatus receives a data storage device with a plurality of posts. The mounting apparatus includes a bracket, and a latching unit mounted to the bracket. The latching unit includes a fixing tray, a sliding member slidably mounted in the fixing tray, and a resisting member mounted to the sliding member and resisting the post. When the sliding member is slid in the fixing tray along a first direction to resist the resisting member, the resisting member is moved into the fixing tray along a second direction perpendicular to the first direction. When the sliding member is slid in the fixing tray along a third direction opposite to the first direction, the resisting member is moved outside the fixing tray along a fourth direction opposite to the second direction.

Abstract: A power module includes a power source comprising an end defining a socket, an external power line comprising a plug inserted into the socket, a fixing piece fixed at the end of the power source, and a clamping piece. The clamping piece includes a base mounted on the fixing piece, two parallel fixing portions extending from the base and defining a slot therebetween, a hook positioned on one of the fixing portions and extending in the slot, and a clamping band. The clamping band includes a fixed end fixed on the base and a slide end. The slide end includes spaced fixing teeth, a fixing groove is defined between each two of the fixing teeth, the clamping band winds around the external power line, the hook is engaged with one fixing groove to lock the slide end, and the clamping band and the base cooperatively hold the external power line.

Abstract: A mounting apparatus includes a mounting bracket, a mounting piece adapted to mount a PCI card to the mounting bracket, and a securing member. The mounting bracket includes a base and a blocking plate. The mounting piece includes an elongated body and a mounting end. The securing member includes a first pivoting portion pivotably attached to the mounting bracket, a pressing portion, and a mounting portion. The mounting portion includes a securing portion. The securing portion includes a handling portion and a second engaging portion extending from the handling portion. The second engaging portion engages the first engaging portion. The handling portion is configured to drive the second engaging portion to disengage the first engaging portion by pressing the handling portion.

Abstract: A battery cover assembly for a portable electronic device includes a housing, a battery cover, and a pivot member. The housing forms a first latch portion and a second latch portion, the first latch portion and the second latch portion being arranged at a circle. The battery cover forms a first engaging portion and a second engaging portion engaging with the first latch portion and a second latch portion to allow the battery cover to releasably latch to the housing. The pivot member rotatably connects the battery cover to the housing.

Abstract: An electronic module (100) for mating with a complementary connector, comprises: a housing, a printed circuit board (3) disposed in the housing, a slider member (6) movably received in the channel, a cover member (9) confining the slider member to the housing, a gasket (5) mounted to the housing and having a pair of engaging portions (54), and an ejector (7) located above on the slider member. The slider member has a body portion (611) and a pair of arm portions (612) extending forwardly from the body portion. The ejector is located above the pair of arm portions, and has a pair of cantilever portions pivotable outward, in response to a sliding movement of the slider member, against the pair of engaging portions.

Abstract: A docking station includes an enclosure, two hook assemblies, a transmission assembly, a button and a pusher assembly. The enclosure defines a receiving room, two first through holes and a second through hole. The hook assemblies pass through the first through holes to secure an electronic device. The transmission assembly engages with the hook assemblies to drive the hook assemblies move forward and backward in the first through holes to be coupled to and uncoupled from the electronic device. The button extends into the receiving room from outside of the enclosure and used to drive the transmission assembly move. The pusher assembly passes through the second through hole to push the electronic device away from the enclosure. When the hook assemblies are detached from the electronic device, the pusher assembly push the electronic device detach from the enclosure.

Abstract: One variation of the invention is a electronic module comprising: a housing with external faces and electrically-conductive first, second, and third toes, each of which extends from one face to an adjacent face; first, second, and third magnetic elements arranged within the housing and proximal the first, second, and third toes, respectively; and a circuit arranged within the housing and electrically coupled to the toes. The circuit is operable between: a first mode when the first and second toes are in contact with a first terminal and a second terminal of a second electronic module, respectively; and a second mode when the second and the third toes are in contact with the second terminal and a third terminal of the second electronic module. The magnetic elements are configured to transiently retain the second electronic module against the housing, in both stacked and adjacent configurations, in the first and second modes.

Abstract: A locking device includes a first slide part having a first lock part and configured to be movable, a second slide part having a second lock part and configured to support the first slide part and be movable independently from the first slide part, and a lock arm part configured to be movable in a direction intersecting with the first slide part and the second slide part and engage with the first lock part and the second lock part at a locking position to prevent the first slide part and the second slide part from moving.

Abstract: A chip card holder includes a main housing and a retaining cover. The main housing includes a chip card receiving portion for receiving a chip card. The main housing defines a slot adjacent to the chip card receiving portion. A locking portion is formed adjacent to the slot. The retaining cover is rotatably attached the main housing. The retaining cover includes a latching portion. The latching portion includes an angled bottom. The retaining cover is locked to the main housing by engagement of the locking portion and the latching portion, and the angled bottom of the latching portion is received in the slot.

Abstract: A cover latching assembly includes a housing, a releasing assembly and a cover. The housing includes an upper board, a side board extending from the upper board and an assembling portion disposed on the upper board communicating with the side board through a hole. The cover is detachably mounted on the housing and includes an upper wall and a peripheral wall. The peripheral wall has a notch defined therethrough corresponding to the hole; the upper wall has a latching hook formed thereon adjacent to the notch. The releasing assembly is releasably assembled within the accommodating portion of the housing through the hole and partially accommodated within the hole for releasably latching with the latching hook of the cover.

Abstract: An electronic device includes a main body, a cover rotatably connected to the main body, at least one locking mechanism for fastening the cover to the main body, and a switch. The locking mechanism defines a locking hole in the main body and includes a locking member fixed to the cover. The locking member includes a magnetic member, an electromagnet, a compressed spring, and a locking pin. The electromagnet is electrically connected to the switch, and is operable to be powered off via switching the switch. The spring is disposed between the magnetic member and the electromagnet, and moves one of the magnetic member and the electromagnet when the electromagnet is powered off. The locking pin is inserted into the locking hole when the cover covers the main body and the electromagnet is powered off.

Abstract: A power semiconductor module system. One embodiment provides a power semiconductor module and a mounting adapter. The mounting adapter and the power semiconductor module can be latched to one another in two different latching stages such that a contact element of the power semiconductor module makes electrical contact with a contact element of the mounting adapter assigned to the contact element in a second one of the latching stages but not in a first one of the latching stages.

Abstract: A holder secures a linecard to a chassis. The holder acts as a releasable expansion bolt. To alleviate tolerance requirements for the linecard and/or chassis, the holder secures with minimal additional pressure being applied to force the linecard against the chassis. Rather than screwing a linecard face plate to the chassis card guide, the holder locks the linecard in place without requiring movement of the face plate against the chassis card guide. A gap may remain between the face plate and the chassis, substantially allowing for a desired amount of insertion of electrical connectors without adverse pressure or movement caused by the securing.

Abstract: A battery cover mechanism used in a portable electronic device includes a housing, a battery cover and an operating member. The housing has a first surface, a receiving groove defined therefrom for receiving a battery and an elastic arm disposed thereon adjacent to the receiving groove. The battery cover is detachably mounted on the housing to cover the receiving groove and defines a notch therethrough. The operating assembly comprises a pedestal and an operating member. The pedestal is fixedly mounted on the battery cover and releasably resisted by the elastic arm. The operating member is rotatably assembled with the pedestal and accommodated within the corresponding notch of the battery cover so as to make the elastic arm release the pedestal to detach the battery cover from the housing.

Abstract: An electronic device includes a main body, a battery, a locking member, and an elastic member. The main body defines a receiving cavity. The receiving cavity has a plurality of sidewalls. One of the sidewalls defines a receiving depression. The battery is detachably received in the receiving cavity. The locking member is fixed on the battery. The locking member includes an elastic resisting portion. The button is positioned on the main body. The elastic member biases the button. The elastic resisting portion is inserted into the receiving depression to fix the battery. When an external force is applied to the button, the button pushes the elastic resisting portion out of the receiving depression so that the battery can be taken out. After the external force is removed, the elastic member pushes the button to return to its original position.

Abstract: A latching mechanism for a portable electronic device includes an assembly seat, two latching members, two resilient members and a pressing member, the two latching members are pivotably positioned on the assembly seat, the two resilient members are secured on the assembly seat and resist the two latching members respectively, the pressing member is resisted by the two latching members and is slidable relative to the assembly seat.

Abstract: A server includes a substrate, a circuit board and a locking device assembling the circuit board to the substrate. The locking device includes a frame and a sliding member. The frame includes a pin having a main body and a hood wider than the main body. The sliding member defines a latching groove and a sliding groove therein. The latch groove includes a circular hole facing the sliding groove and a slit narrower than the circular hole. The sliding groove includes an opening facing the latch groove and a split. The opening is wider than the hood. The split is narrower than the hood but not narrower than the main body. The hood extends through the opening of the sliding groove. The sliding member moves relative to the frame along a first direction to cause the main body of the pin to engage in the split of the sliding groove.

Abstract: A retention assembly for an expansion card in an enclosure, the expansion card having an expansion card cover plate. The retention assembly includes an expansion card mounting frame, a limiting member, a resisting member, and an elastic member. The expansion card mounting frame is disposed on the enclosure to fix the expansion card cover plate. The limiting member is disposed on the enclosure adjacent to the expansion card mounting frame, and the limiting member and the enclosure cooperatively define a guide groove. The resisting member includes a resisting portion and a limiting portion connected to the resisting portion and slidably received in the guide groove. The elastic member interconnects the expansion card mounting frame and the resisting member. The resisting portion resists the expansion card cover plate by a resilient force applied by the elastic member.