Abstract: An apparatus for installing a module in a computer system. In one embodiment, the apparatus includes a sliding member movably coupled to a base of a module, where the sliding member includes a handle that allows a user to move the sliding member. The apparatus also includes one or more levers movably coupled to the sliding member, where the one or more levers include extension ends operable to secure the module to a chassis. The apparatus remains within the module except for the handle and except for the extension ends when the apparatus is in an installed position and the handle. According to the system and method disclosed herein, the apparatus facilitates installation of the module in a computer system in a space saving manner.

Abstract: A mounting apparatus for mounting a plurality of expansion cards (50) in a computer includes a chassis (10), a rack (40), a fixing member (60), and a locking member (70). The chassis includes a rear panel (12). The rack is attached to the chassis and includes a fixing plate (42) parallel to the rear panel. The fixing member is attached to the fixing plate and pivotally secures ends of the expansion cards with cover pieces (53) to the rear panel. The locking member is rotatably attached to the fixing plate of the rack and includes a plurality of hooks (715) extending therefrom. The hooks engage in apertures (51) defined in the other ends of the expansion cards.

Abstract: A mounting apparatus for fixing an expansion card (20) in a base (10), the mounting apparatus includes a receiving portion (30), a bracket (40) and a latch (50). The receiving portion (30) is formed from the base (10) for receiving one end of the expansion card (20) therein, and the bracket (40) is formed from the base (10) opposite to the receiving portion (30). The latch (50) is rotatablely fixed in the bracket (40). The latch (50) includes a main body (55), a handle portion (52) and a pedestal (51) extending from two end of the main body (55) respectively, and the other end of the expansion card (20) is engaged between the handle portion (52) and the pedestal (51).

Abstract: A memory card including a module comprising at least a printed circuit board having an electronic circuit device mounted thereto and at least one I/O pad and at least one test pad disposed thereon. The module is inserted into a complementary cavity formed within a case of the memory card, such case generally defining the outer appearance of the memory card. The module is secured within the cavity of the case through the use of an adhesive. In each embodiment of the present invention, first and second covers are movably attached to a case for selectively covering or exposing the I/O pads and the test features/pads of the module of the memory card.

Abstract: A mounting apparatus for fixing an expansion card to a motherboard, includes a connector socket for engaging with a first portion of the expansion card, and a clamp configured for engaging with a second portion of the expansion card. The connector socket is installed on the motherboard, and two latching portions are formed on two sides of the connector socket respectively. The clamp includes two elastic arms riding on the second portion of the expansion card and engaging with the corresponding latching portions of the connector socket.

Abstract: A mounting apparatus for an expansion card (30) includes a computer panel (12), a bracket (14) mounted to the computer panel, and a card holder (20) mounted to the bracket. At least a post (1416) is formed on the bracket. The card holder includes a body (22) glidingly mounted to the bracket for installing the expansion card and a handle (24) resisted by the post of the bracket for preventing the body from sliding out so as to fix the card holder in position.

Abstract: A fixing mechanism for functional extension cards is disclosed, which can be fixed by fixing bolt thereof to the mechanical frame of a computer system having at least a first positioning hole and a second positioning hole, and to a bayonet board of the functional extension card. The fixing mechanism includes a fixing body, a spindle hole, a fixing portion, an operating portion and a first restricting portion. The body is installed on the frame by the fixing bolt to resolve the problems of the functional extension card slanting and loosening from the frame by the restriction effects respectively provided by the first restricting portion and second restricting portion of the body. The present invention is easy to operate and install to enable the functional extension card to be easily assembled into and disassembled from an extension slot of a computer system.

Abstract: The present invention provides a securing device for securing a card to a socket within a computer is provided where the card and the socket are coupled. The device includes a unitary base member comprising a foundation portion dimensioned to receive a stationary socket and an arm portion orthogonally positioned relative to the foundation. A first engaging means is formed on at least one side of the arm member. The device also includes a clasp assembly that includes an opening for slideably receiving the arm portion of the unitary base member, a recess for receiving a non-connecting end of a card, and a second engaging means for securely engaging the first engaging means. The clasp assembly secures the card to the socket with the socket received in the foundation portion and edge of the card is received in the recess.

Abstract: The device includes a housing, a locking and release mechanism, an electrical connector, an optical connector, and pathological circuitry. The housing has a top, a bottom, a front, and a back. The locking and release mechanism is attached to the housing. The electrical connector is attached to the back of the housing. The optical connector is attached to the front of the housing. The pathological circuitry handles pathological conditions associated with digital video signals.

Abstract: A fastening assembly is for securing a heat sink to a heat generating electronic device located on a printed circuit board. The fastening assembly includes a first element and a second element slidably received in the first element. The first element includes a pressing portion, a plurality of outer flexible portions located below the pressing portion and a plurality of inner flexible portions integrally extending inwards from the outer flexible portions, respectively. The pressing portion of the first element presses downwardly the heat sink toward the electronic device. The outer flexible portions of the first element abut upwardly against the printed circuit board. The second element is capable of acting on the inner flexible portions of the first element to motivate the outer flexible portions to release their abutment from the printed circuit board.

Abstract: An auxiliary fixing mechanism is used for fixing an interface card to the housing of a computer. The auxiliary fixing mechanism includes an I/O window and an auxiliary fastener. The I/O window has a fixing slot and a first screw hole. The auxiliary fastener includes a first baffle, a second baffle, a third baffle, a fixing hook and a positioning hook. A screw is passed through the second screw hole of the auxiliary fastener in a direction that is vertical to the interface card. The bracket of the interface card is pushed and stopped by the baffles to restrict the movement of the interface card. Thereby, the auxiliary fixing mechanism can change the fixing direction for fixing the screw to prevent the prior art problem that the interface card could not be fixed to the housing via a screw due to space limitations.

Abstract: A support member includes a support panel and a retention element for use in mounting an associated component to the support panel. The retention element defines a bore for receiving an associated threaded fixing element which mounts the component to the support panel. A protrusion extends into the bore from a sidewall thereof. The protrusion assists in positioning the fixing member on reinsertion of the fixing member into the bore, such that the frequency of stripping of a thread of the bore is reduced.

Abstract: A mounting apparatus for expansion cards (80) comprises a bracket (20), a pair of sliding members (40) and a retainer (60). The bracket staying in the chassis (90) of a computer comprises a main body (22), at the edge of the main body extends inwardly a first guiding part (224). A sliding portion (42) and a clasp portion (48) are formed on each sliding member. The sliding portion can engage in the first guiding part slidably, a post (482) protrudes outwardly from each clasp portion. The retainer comprises a rear wall (62), a serial of slots are defined on the rear wall successively for the posts to slide in. The retainer moves up and down when the posts slide in the slots.

Abstract: A device is provided for coupling (i) a PCB sheet, which includes a first PCB and a space formed after removing a defective PCB from the PCB sheet, with (ii) a replacement second PCB received in the space and has a connecting part spaced from a periphery of the space by a channel. The device includes a PCB securing plate adapted to support the PCB sheet. PCB securing pins project from an upper surface of the PCB securing plate to be inserted into pin receiving holes of the first and second PCBs for positioning the PCBs. PCB securing tapes are integrally attached on the PCB securing plate for securing the PCB sheet and the second PCB to the PCB securing plate. An adhesive is adapted to be filled into the channel to couple, when cured, the PCB sheet and the second PCB together.

Abstract: A retaining device (10) for retaining expansion cards (20) in a chassis (300) includes a retaining member (100) and a locking member (200). An upper positioning protrusion (316) and a lower positioning protrusion (318) are formed on a bent plate (312) of the chassis. The locking member is pivotally attached to the bent plate. A pressing portion (216) is formed on an inner side of the locking member and a notch (206) is defined in an outer side of the locking member. A support portion (126) is formed on the retaining member corresponding to the pressing portion. When the upper positioning protrusion is matched with the notch, the retaining member is put into the chassis. The locking member is pressed until the lower positioning protrusion is matched with the notch, and thus the retaining member is secured to the chassis.

Abstract: A chipset coupling apparatus mounted onto a chipset-coupling seat of a printed circuit board includes a compression plate, which has an opening to allow a cooling section of a chipset to extend there through. The compression plate has anchor members on two opposite sides to latch on the chipset coupling seat. The compression plate can press the pin board of the chipset and enable the anchor members and the chipset coupling seat to form a latch relationship, so that a heat sink may be removed from the chipset, without removing the chipset at the same time, to avoid damage of the pins on the chipset.

Abstract: Device for locking and unlocking at least one interface card plugged into a socket of a receiving system (2) linked to a data processing system. The device (1) comprises a box (3) mounted to the receiving system (2) and receiving at least one sliding locking/unlocking element (4a-4n) for locking/unlocking interface cards. Each of elements (4a-4n) is disposed opposite a socket in a position that blocks the access to or removal of an interface card. Each element (4a-4n) comprising an element for controlling the power supply (63) of the card, a visual element for indicating the operation and the recognition of the card, and a detecting element for detecting the intent to unlock the card. The device (1) includes a communication element that makes it possible to transmit signals between the data processing system and the device.

Abstract: Insertion and ejection mechanisms for modular boards and cards. Mechanisms are provided for coupling the motion of insertion/ejection handles coupled to a modular board or a board carrier frame to which a board is attached. The mechanisms include a single-bar linkage, a rack and pinion-based configuration, a two-bar linkage, and a telescoping configuration. Applying an input force to one of the handles causes the board to be urged inward in a chassis slot, thus coupling the connectors on the board with mating connectors on a backplane mounted within the chassis. The input force is coupled via the various handle-coupling mechanisms to the other handle, producing a result similar to if a force was applied to both handles at the same time. In a similar manner, a board may be ejected by applying a force to a single handle to cause that handle to rotate outward. An automated retention screw insertion and extraction mechanism is also disclosed.

Abstract: A modular apparatus for an electronic weighing scale is disclosed having a battery housing, a printed circuit board and a display fastened together and to a base of the scale. The printed circuit board may be adapted to accommodate a number of displays for various scale models. Additionally, a method for assembling an electronic weighing scale is disclosed.

Abstract: A method and a device for coupling a PCB sheet are disclosed. If a defective PCB is found after the manufacture of continuously arranged circuit patterns, then the defective PCB sheet portion is removed to replace it with a new PCB sheet portion. That is, a defective circuit pattern sheet 2? is removed from continuously arranged circuit patterns of a first PCB sheet 4a. After removal of the defective circuit pattern sheet 2?, the first PCB sheet 4a is position-located by means of a position locating means 12. Then the space which is formed by removing the defective circuit pattern sheet 2? is filled with a second PCB sheet 4b on which a good quality circuit pattern 2b is printed. Then the first PCB sheet 4a and the second PCB sheet 4b are coupled together by using an adhesive means 14.

Abstract: An electronics module comprises an electronics assembly having a first connector and a second connector. The first and second connectors are disposed on opposite ends of the electronics assembly. A case encloses the electronics assembly. The first connector is accessible through a first side of the case and the second connector is accessible through a second side of the case. A locking tab is disposed on the case and is biased to an extended position. A sliding member is slidably coupled to the case and is operable to move the locking tab to a retracted position.

Abstract: A pluggable video module (PVM) having a housing with a top, a bottom, a front and a back; a locking and release mechanism proximate the front of the module for securing the module within a host device; an electrical connector proximate the back of the module for electrically connecting the module to a host device; an optical connector proximate the front of the module for receiving an optical connector; and a key slot on the bottom and proximate the rear of the module for receiving a key tab from a host device, thereby allowing the module to be inserted into a host receptacle having a key tab.

Abstract: A transceiver module has an interface surface and is received within a cage. The cage has a cage latch that retains the transceiver module. The transceiver module has a ramp, an actuator and a release handle. The ramp is located on the interface surface of the transceiver module and has a ramp surface that slopes away from the interface surface of the transceiver module and toward the cage latch. The actuator is adjacent the interface surface of the transceiver module and is configured to be movable on the ramp surface. The release handle is mounted on the transceiver module and is coupled to the actuator. Rotating the release handle in a first direction causes the actuator to move along the ramp surface toward the cage latch thereby moving the cage latch away from the interface surface. Rotating the release handle in a second direction causes the actuator to move along the ramp surface toward the interface surface and away from the cage latch.

Abstract: A method according to one embodiment may include providing a circuit board assembly comprising a circuit board and a rotatable knob and at least one latch coupled to the knob via a linkage. The method of this embodiment may also include moving the at least one latch to a retracted position by rotating the knob, and inserting the circuit board assembly into a chassis. The method may then include moving the latch to an extended position. Of course, many alternatives, variations, and modification are possible without departing from this embodiment.

Abstract: Electronic Circuit Building Blocks are mechanically connected to each other to form larger circuit boards using a mechanical bridge connector. The Electronic Circuit Building Blocks include female interlocking elements formed on its edges, and the mechanical bridge connector includes male interlocking elements. Half parts of the male interlocking elements of the mechanical bridge connector are inserted into the corresponding female interlocking elements of the Electronic Circuit Building Blocks from one side of the circuit board. The Electronic Circuit Building Blocks include through-holes for mounting through-hole components and/or surface-mount pads for mounting surface-mount components. The Electronic Circuit Building Blocks also include traces interconnecting two or more of the through-hole components and the surface-mount components.

Abstract: A method and apparatus are disclosed for isolating and attenuating shock and vibration in a disk module that includes media drives that are mounted on a printed circuit board (PCB). The apparatus includes a single printed circuit board (PCB), media drives that are coupled to the PCB, a first reinforcing rail that is attached to the PCB and to a first side of a first one of the media drives, a second reinforcing rail that is attached to the PCB and to a first side of a second one of the media drives, and a locking mechanism for locking the first and second rails together.

Abstract: An operating element for the engaging and extraction of planar sub-assemblies, with a display element in the operating lever, a front element for a planar sub-assembly with operating element and component support for accommodating planar sub-assemblies.

Abstract: Disclosed is a device and method of attaching a housing unit, particularly an instrument cluster housing, to an IP retainer without the necessity of attaching the bottom edge of said housing with fasteners such as screws and the incumbent requirement for fastener driver and driver operator access. This achieved by providing at least one snap-in attachment member on the bottom edge of the housing. The attachment member terminating in a mounting pin mounted in corresponding pin mounts provided in the receiving IP retainer.

Abstract: A mounting apparatus for mounting a motherboard (30) having several first mounting holes (33) includes a chassis (10), a fixing member (70), and a supporting tray (50). The chassis comprised a post (24) protruding from a bottom wall (12) thereof, and a number of standoffs (18) received in first the mounting hole. The fixing member is slidably mounted to the post, and includes an engaging portion (82) protruding from a lower portion thereof. The supporting tray is attached to the motherboard, and includes a slice (66) projecting from a side portion thereof. When the engaging portion of fixing member engages with the slice of supporting tray, the motherboard is in a locked state; when the engaging portion of fixing member disengages from the slice of supporting tray, the motherboard is in an unlocked state.

Abstract: A mounting apparatus for mounting a motherboard (70) having several first mounting holes (73) includes a chassis (10), a fixing member (30), and a supporting member (50). The chassis comprised a post (13) protruding from a bottom wall (11) thereof, and a number of standoffs (17) received in first the mounting hole. The fixing member is slidably mounted to the post, and includes a first engaging portion (35) protruding from a middle portion thereof. The supporting member is attached to the motherboard, and includes a second engaging portion (57) projecting from an end thereof. When the first engaging portion of the fixing member engages with the second engaging portion of the supporting member, the motherboard is in a lock state; when the first engaging portion of the fixing member disengages from the second engaging portion of the supporting member, the motherboard is in an unlock state.

Abstract: The present invention discloses a circuit board group for electrically coupling electronic devices, which comprises a primary circuit board divided into an electronic device connecting section and a circuit section. The electronic device connecting section comprises a first connection port for connecting electronic devices and the circuit section comprises a second connection port. The primary circuit board is electrically connected to a secondary circuit board. A third connection port correspondingly coupled to the second connection port is disposed on the secondary circuit board at a position corresponding to the circuit section, and a through hole disposed on the secondary circuit board at a position corresponding to the electronic device connecting section for receiving the first connection port. Further, a fourth connection port is disposed on the other side of the secondary circuit board for increasing the number of installable electronic devices.

Abstract: A fixing holder for fixing an electronic component having wire-shaped leg portions to a printed circuit board, the holder being an almost cylindrical-shaped holder for holding the electronic component having the wire-shaped leg portions in a manner that the leg portions pass through and protrude therefrom, the fixing holder comprises: a holder main body portion for holding a main body portion of the electronic component; and a base portion continuously provided to the holder main body portion, wherein one surface of the base portion on a forward side is opened to form an opening, at least a portion of periphery of the opening is configured to form a flat surface, and a side surface of the holder main body portion on a side where the opening is formed is protruded forward to form an engagement nail portion to be engaged with the printed circuit board.

Abstract: Systems and methods for providing a dynamically modular processing unit. A modular processing unit is provided as a platform that is lightweight, compact, and is configured to be selectively used alone or oriented with one or more additional processing units in an enterprise. In some implementations, a modular processing unit includes a non-peripheral based encasement, a cooling process (e.g., a thermodynamic convection cooling process, a forced air cooling process, and/or a liquid cooling process), an optimized circuit board configuration, optimized processing and memory ratios, and a dynamic back plane that provides increased flexibility and support to peripherals and applications. The modular processing unit is customizable and may be employed in association with all types of computer enterprises. The platform allows for a plethora of modifications that may be made with minimal impact to the dynamically modular unit, thereby enhancing the usefulness of the platform across all type of application.

Abstract: A mounting apparatus for mounting a planar member (10) comprises a base (200), a pair of locking members (160) secured on the base, a supporting tray (130) secured on a bottom of the planar member and an operating shaft (110) pivotally attached to the supporting tray. A plurality of mounting holes (143) is defined in the supporting tray and each comprises an accommodating hole (142) and a retaining hole (144). A plurality of standoffs (210) formed on the base and each comprises a head portion (214) and a neck portion (212). A pair of arms is formed on the operating shaft and each defines a cutout for receiving the locking member. After the head portions of the standoffs are received in corresponding accommodating holes, the operating shaft is pushed towards the base. The planar member is attached to the base when the neck portions are received in corresponding retaining holes.

Abstract: A computer includes a motherboard having first and second sets of expansion card slots, an expansion card bulkhead defining expansion card openings, and a configurable alignment mechanism operable to place the motherboard and the expansion card openings into first and second configurations relative to one another. In the first configuration, the first set of expansion card slots is aligned with the openings. In the second configuration, the second set of expansion card slots is aligned with the openings.

Abstract: The invention relates to a circuit for operation of a lamp with a component 4 to be cooled and with a heat sink 6, 6? which includes an angle of 10°–70° with a circuit board 1.

Abstract: An expansion card mounting apparatus includes a rear panel (10), a pressing body (50) pivotably attached to the rear panel, and two retention members (70) attached to the pressing body. The rear panel defines two retention slots, and includes a support frame supporting slot covers (101) of expansion cards (100). The retention members are received in the retention slots respectively. Each retention member is movable in a corresponding retention slot to drive the pressing body between a locked position in which end portions (101) of the slot covers are sandwiched between the support frame and the pressing body, and a released position in which the end portions are released from the pressing body. The retention member includes a spring arm (76) snappingly engaging in the corresponding retention slot to retain the pressing body in the locked position.

Abstract: An arrangement for introducing a plate element, for which heat needs to be dissipated by means of conduction, into a slot of a chassis which is adapted to absorb the heat. The slot has a back wall adapted to contact the plate element upon its insertion, an opposing front wall, and a base wall. The plate element has margins adapted for carrying the arrangement. The arrangement comprises has a seat located on the margins. The arrangement further has a wedgelock moveably attached to the seat, having two slot engaging surfaces adapted to contact the front and base walls of the slot, and a seat engaging portion adapted to contact the seat.

Abstract: According to one embodiment, the present invention includes a first electrical connector located on a computer component and a biasing mechanism having a leverage member, such that actuation of the leverage member biases the first electrical connector between engaged and disengaged positions with respect to a second electrical connector separate from the computer component.

Abstract: A method and a device for coupling a PCB sheet are disclosed. If a defective PCB is found after the manufacture of continuously arranged circuit patterns, then the defective PCB sheet portion is removed to replace it with a new PCB sheet portion. That is, a defective circuit pattern sheet 2? is removed from continuously arranged circuit patterns of a first PCB sheet 4a. After removal of the defective circuit pattern sheet 2?, the first PCB sheet 4a is position-located by means of a position locating means 12. Then the space which is formed by removing the defective circuit pattern sheet 2? is filled with a second PCB sheet 4b on which a good quality circuit pattern 2b is printed. Then the first PCB sheet 4a and the second PCB sheet 4b are coupled together by using an adhesive means 14.

Abstract: A computer component mounting system includes two mounting frames (30) attached to two side panels (52) of a chassis (50) respectively, and a mounting bracket (10) having a main portion (12) for attaching computer components (100) such as fans (100) thereto, and two mounting portions (13) at opposite ends of the main portion. Each mounting frame includes a base plate (32) forming a positioning plate (322), and two side plates (36) each forming an oblique guide plate (362). A locking slot (364) is defined in each side plate and adjoining guide plate. Each mounting portion includes two locking tabs (140, 160) engaging in the locking slots of a corresponding mounting frame, and a positioning tab (15) joined to the positioning plate of the corresponding mounting frame to thereby secure the mounting bracket to the mounting frames. The fans are thus secured within the chassis.

Abstract: A lock assembly for securing a printed circuit assembly to a housing comprises a pivot point for coupling the lock assembly to the housing and a lock member capable of rotating and snapping into a detent in the printed circuit assembly to hold the printed circuit assembly in place.

Abstract: To provide a board unit having an insertion-extraction handle locking structure with which a desired locking force can be easily generated and the locking force is hardly lowered, and which is low in production cost. An insertion-extraction handle 5 is rotatably supported by a panel body 4. A spring unit 6 is resiliently held in a spring receiving hole 45 formed in the panel body 4 and has a first spring part 61 which, when a stopper part 53 of the insertion-extraction handle 5 is inserted into the spring receiving hole 45, applies a resistance to the insertion of the stopper part 53, and which, when the stopper part 53 is extracted from the spring receiving hole 45, applies a resistance to the extraction of the stopper part 53.

Abstract: An optical encoder module includes a housing that includes at least one recess having an open end and an opposite closed end, and an electrical component accommodated within the recess. A first locking member is formed on the electrical component and a second locking member is formed in the housing. The first and second locking members are engaged with each other for locking the electrical component, when inserted into said recess, into a locking position. At least one resiliently compressible protrusion is provided between the electrical component and the closed end of the recess so as to be resiliently compressed therebetween into its compressed state when the electrical component is locked in the recess in its locking position.

Abstract: A short card support for supporting a short printed circuit card insertable into an electronic system is disclosed. The short card support has a card guide end adapted to couple to the card guide of the electronic system and a card receptor end adapted to couple with a first edge of the short printed circuit card. A support span between the card guide end and the card receptor end permits the short card support to accommodate varying lengths of short printed circuit cards.

Abstract: Adapter for contacting chip cards with a connection of a data processing unit standardized according to a PCMCIA standard, including a plug-in card-like housing which has an insertion slot opening on a front end into a mounting channel for mounting a chip card and a connector panel arranged on an opposite front end, and a printed circuit electrically connected with the connector panel which extends parallel to the mounting channel and which is provided with contact elements for contacting the chip card, where the printed circuit has a length shortened in relation to the mounting channel in the direction of extension of the mounting channel and is provided with an apparatus for positioning the printed circuit and for guiding the chip card in the mounting channel on the front end facing the insertion slot.

Abstract: A computer system includes a chassis, a first printed circuit board having a surface facing the cavity and at least one component extending from the surface. The printed circuit board moves between a first position in which the at least one component is at least partially received within the cavity and a second position in which the at least one component is removed from the cavity.

Abstract: A substrate holding device for holding a circuit substrate. The substrate holding device has a substrate clamping device including a receiving member and a movable member which is movable to force a portion of the circuit substrate against the receiving member, for thereby clamping the circuit substrate. At least one of the receiving member and the movable member has an elastically deformable portion provided by its contact portion which is to be brought into contact wiht the circuit substrate. The elastically deformable portion is preferably formed of a rubber or its equivalent material. The substrate holding device may have a movement-velocity reducing device which reduces the movement velocity of the movable member in a final stage of forward movement of the movable member toward the receiving member.

Abstract: An electronic system includes a chassis, a first system component coupled to the chassis and having a first connector, a pivot member pivotally coupled to the chassis, a second system component having a second connector configured to mate with the first connector, and a link coupled to the second system component and slidably coupled to the pivoting member. Pivotal movement of the pivoting member moves the first connector and the second connector between a connected state and a disconnected state.

Abstract: The present invention relates to an interface card fastener, which is set in a computer system host or any other electronic device comprising expansion slots, comprising a bracket and a plurality of pivot assemblies. The bracket is set upon the frame above the expansion slots inside the chassis, and comprises a back frame engaged with the chassis and a plurality of the inner frames extended from the back frame. Each two inner frames define a fasten chamber, and the back frame comprises a horizontal extended L-shape hook in the appropriate position. The pivot assembly is set in the fastener chamber, which rotates between the fastening and the release positions of the interface card, and comprises a hook and a handle linked with the hook. To operate the fastener, pushing the handle directly to hook with the L-shape hook or unhook in interface card positioning, which is easy operating and stable positioning.