Abstract: An enclosure includes a back plate and a heat dissipating device. The back plate includes a plurality of locking members extending from the back plate. The heat dissipating device attached to the back plate and includes a plurality of fixing members engaging with the locking members.

Abstract: A desktop computer includes a monitor defining a number of screw holes in the backside and a chassis defining a number of fixing holes. A number of screws extending through the fixing holes of the chassis and mounts into the corresponding screw holes of the monitor, to mount the monitor to the chassis.

Abstract: An environmental testing device includes a humidity control module, a temperature control module; and an air circulation module. The air circulation module includes an enclosure and a fan received in the enclosure. Two pairs of airflow openings are defined in the enclosure and form different airflow passages that allow air to flow along different directions in the environmental testing device.

Abstract: A server cabinet includes a cabinet, a first slide rail, and a second slide rail. The cabinet includes a top surface, a bottom surface, a rear wall, two sidewalls, and two doors. The first slide rail is mounted on an inner surface of one of the sidewalls. The first slide rail has a first end and an opposite second end. The first slide rail defines a first slide groove. The first end is adjacent to the doors, and the second end is close to the rear wall. The second slide rail has a first and a second connection ends. The second slide rail defines a second slide groove. The first connection end is rotatably coupled to the first end so that the second slide rail is capable of rotating relative to the first slide rail to a position where the second slide rail aligns with the first slide rail.

Abstract: A universal serial bus (USB) interface includes a positive differential signal pin including first and second sections, a button mounted to the USB interface, and an elastic piece. The button includes a driving rod with a distal end resisting against the second section, a receiving room is defined below the second section to receive the elastic piece, so the second section is clamped between the elastic piece and the driving rod and is electrically connected to the first section. When the button is pressed, the driving rod of the button causes the second section to deform the elastic piece, so the second section moves away from the first section. When the button is released, the elastic piece is restored to return the first section to the second section, so the first and second sections are electrically connected again.

Abstract: A length measurement device comprises a first connector, a measurement wire, and a second connector. The second connector comprises a substrate and a fixer pivotally connected to the substrate. The measurement wire is an electrical wire with a scale. One end of the measurement wire is connected to the first connector, and another end is movably connected to the substrate of the second connector and the fixer.

Abstract: A Registered Jack-45 connector matching a connector with two light emitting diodes, includes a main body engaged with the connector, and a light guide member fitting about the main body. The light guide member includes two light guide posts. Each light guide post includes a front end aligning with and facing a corresponding light emitting diode, and a rear end opposite to the first end. The light guide posts transmit light emitted by the light emitting diodes from the front ends to the rear ends of the light guide posts.

Abstract: A mounting apparatus includes a bracket, fasteners, and a positioning member. The bracket includes an end member, and a pair of side plates perpendicular to the end member. The positioning member is pivotably attached to the end member. A pair of mounting holes is defined in each side plate. Each mounting hole includes an entry portion extending through an edge portion of the side plate, and a locating portion communicating with the entry portion. The entry portion is closer to the end member than the locating portion. The fasteners are attached to two sidewalls of a storage device. Each fastener includes a gasket received in the entry portion of a mounting hole to abut against the storage device. The positioning member is pivoted to abut against the storage device when the gaskets move from the entry portions to the locating portions of the mounting holes.

Abstract: A server assembly includes a first server and a first airflow guiding pipe. The first server comprises a front wall. An input hole is defined in the front wall. A first input opening and a first output opening are defined in the first airflow duct. The first output opening corresponds to the input hole so as to guide airflow into the inner of the first server to dissipate heat generated by the first server. The first airflow guiding pipe is connected to the first input opening of the first airflow duct, the first airflow guiding pipe is configured to receive and guide airflow into the first airflow duct.

Abstract: A disk drive mounting device for use in an electronic apparatus includes a mounting frame, fasteners, and a cover member. The mounting frame includes a mounting plate, a flange formed at a side of the mounting plate, and a plurality of mounting ears extending outwardly from the mounting plate. Each of the mounting ears defines at least one receiving cutout therein. In use, one end of each of the fasteners is mounted on the disk drive and the other end is received in the receiving cutout of a corresponding mounting ear. The cover member is secured on the flange of the mounting frame and abuts the at least one disk drive to prevent the fasteners from disengaging from the receiving cutouts of the mounting ears. A disk drive assembly is also provided.

Abstract: A server heat dissipating system includes two server assemblies, an airflow producing device configured to produce airflow, and a main airflow guiding pipe. Each server assembly includes a server cabinet configured to receive a first server and an airflow guiding device. The airflow guiding device is configured to guide airflow to the first server to dissipate heat generated by the first server. The main airflow guiding pipe is connected to the two airflow guiding devices to guide airflow from the airflow producing device to the airflow guiding devices.

Abstract: A battery holder comprises an upper part and a lower part. The upper part comprises a first support, a second support, a first substrate, a surrounding sidewall extending from the periphery of the first substrate, and the surrounding sidewall and the first substrate define a first receiving room to receive a first battery. The lower part is provided under the upper part, which comprises a second substrate, a stopper rotatably connected to an end of the first support, and a curved wall extending from an end of the second support. The stopper, the second substrate, and the curved wall define a second receiving room for receiving a second battery.

Abstract: A waste heat recycling device includes an air-duct, a fan and a retaining mechanism. The air-duct is connected to a heat air. The fan communicates with the air-duct. The retaining mechanism clasps the air-duct and retains the fan. The retaining mechanism includes a clip and a support ring. An edge of the air-duct is sandwiched between the clip and the support ring.

Abstract: A card reader includes a printed circuit board (PCB). The PCB includes a universal serial bus (USB) interface to be connected to an electronic device, a card interface to be connected to a card, a control chip, and a normally-closed switch coupled in a wire connecting a positive differential pin of the USB interface to the control chip. A length of the wire connecting the positive differential pin of the USB interface to the control chip equals to a length of a wire connecting a negative differential pin of the USB interface to the control chip. The normally-closed switch is operable to be switched on or switched off, so as to control the connection between the card and the electronic device.

Abstract: A Registered Jack-45 (RJ-45) connector matching a connector with two light emitting diodes includes a main body forming two light guide posts. Each light guide post includes a first end facing a corresponding light emitting diode, and a second end opposite to the first end. The light guide posts transmit light emitted by the light emitting diodes from the first ends to the second ends of the light guide posts.

Abstract: A Registered Jack-45 connector matching a connector with two light emitting diodes, includes a main body engaged with the connector, and a light guide member fitting about the main body. The light guide member includes two light guide posts. Each light guide post includes a front end aligning with and facing a corresponding light emitting diode, and a rear end opposite to the first end. The light guide posts transmit light emitted by the light emitting diodes from the front ends to the rear ends of the light guide posts.

Abstract: A disk drive assembly includes a disk drive, a disk drive bracket, a fastener, and a securing element. The fastener is mounted on the disk drive and engaging the disk drive bracket to prevent the disk drive from moving along a first direction. The securing element includes a body, a resisting portion extending from the body, and a mounting portion extending from the body. A receiving space is defined between the body and the resisting portion. The disk drive is received in the receiving space. The securing element engages the disk drive bracket and receives the disk drive to prevent the disk drive from moving along a second direction.

Abstract: A circuit board assembly includes a circuit board, a daughter card, and a connecting bracket with a supporting portion. The circuit board includes a first connector and a first position element. The daughter card includes a second connector and a second position element. A first connecting portion extends down from the supporting portion, a second connecting portion extends up from the supporting portion and is electrically connected to the first connecting portion. Two position portions extend from the supporting portion. The first connector of the circuit board is connected to the first connecting portion of the connecting bracket. The second connector of the daughter card is connected to the second connecting portion of the connecting bracket. The first position element of the circuit board and the second position element of the daughter card are latched with the position portions of the connecting bracket, respectively.

Abstract: An expansion card assembly includes an expansion card and a heat shielding cover. The expansion card is mounted to a chassis. The expansion card includes a printed circuit board (PCB) and a heat generating element. The heat shielding cover is fixed to the expansion card. The heat shielding cover includes a main cover mounted to the PCB and a breather cover mounted to the chassis. The breather cover defines at least one vent. The main cover insulates the heat generating element.

Abstract: A hard disk assembly includes a first and a second hard disk, and a hard disk connecting mechanism for holding the first and the second hard disks. The first and second hard disks both each have a composite receptacle. The hard disk connecting mechanism includes a frame for mounting the first and the second hard disks and a composite connector detachably positioned in the frame. The composite connector includes a base, a first composite plug engaged with the composite receptacle of the first hard disk and a second composite plug engaged with the composite receptacle of the second hard disk.