Abstract: A mounting apparatus for a hard disk drive (HDD) which does not require screw fixings includes a bracket defining a first locating hole and a carrier. The HDD includes a pin. The carrier includes a shell receiving the HDD, a resilient connecting member, an unlocking member installed on a side of the shell, and an operating assembly. The unlocking member includes a resilient abutting plate. The operation member includes a connecting rack with rotating latching member mounted to a front end of the shell. A front end of the connecting member is mounted to the shell, a rear end of the connecting member is detachably connected the bracket. The abutting plate abuts against the pin. A block of the latching member latches in the first locating hole, and a second end of the latching member is detachably latched to the connecting rack.

Abstract: A server cabinet for retaining at least one computer server includes a plurality of holding poles and a plurality of retaining apparatuses. Each of the plurality of retaining apparatuses is secured to a computer server and clamps a holding pole, such that the computer server is secured on the plurality of holding poles both vertically and horizontally by the plurality of retaining apparatuses.

Abstract: A power supply positioning apparatus includes a bracket and a circuit board mounted in the bracket. The bracket defines a receiving slot for receiving a power supply unit. A connector is mounted on the circuit board and aligns with the receiving slot. A first end of the bracket is rotatably connected to a chassis of an electronic device, and a second end of the bracket can be latched to the chassis. The bracket faces outside of the chassis.

Abstract: A fan module includes a receiving rack, a number of mounting members, a number of fans, and a number of fastening members. The receiving rack includes two side plates and a number of receiving spaces between the side plates. A top side of each side plate corresponding to one receiving space defines two cutouts. Each mounting member is latched in one corresponding cutout of the receiving rack. Each fan is received in one corresponding receiving space of the receiving rack. The fastening members are arranged on the fans and are latched in the mounting members.

Abstract: An air duct includes a main body, and an adjusting assembly. The main body includes a top plate and two lateral plates extending from opposite sides of the top plate. The adjusting assembly includes two first limiting plates, a second limiting plate, and a third plate. The second and third limiting plates are slidably attached to each other, and are respectively pivotably attached to the first limiting plates. Each first limiting plate is adjustably attached to the lateral plates.

Abstract: A server cabinet for retaining at least one computer server includes a plurality of perforated holding poles and a plurality of retaining apparatuses. Each of the plurality of retaining apparatuses can be secured to a computer server and clamp a holding pole, such that the computer server is secured on the plurality of holding poles both vertically and horizontally by the plurality of retaining apparatuses.

Abstract: A linkage device includes a shell, an active arm, a linkage lever, a random arm and at least two fixed poles. The shell includes two side plates and an upper plate interconnecting the two side plates. The active arm and random arm are both arranged horizontally under the upper plate and between the two side plates. The active arm and random arm each comprise a slide rail inclined to a horizontal surface. The slide rail of the random arm has an inclined direction opposite to that of the slide rail of the active arm. The linkage lever is arranged outside the shell. The linkage lever comprises a central portion pivoted to one of the side plates and two ends respectively pivoted to the active arm and random arm. Two of the at least two fixed poles respectively slide into the slide rails of the active arm and random arm.

Abstract: A mounting apparatus having two latching members for fixing an expansion card to an expansion slot mounted on a motherboard. Two latching members are mounted to two ends of the expansion slot, for fixing the expansion card. Two latching members are pivotably sandwiched between the ends of the expansion slot and the motherboard, respectively. A latching block protrudes from each of the latching members, for abutting against a bottom of the corresponding locking member.

Abstract: An electronic device includes a cabinet and electronic units received in the cabinet. A window is defined between two front columns. Each electronic unit includes a casing, which includes a top plate, a lateral side and a rotator. The lateral side defines an engaging opening therein. The rotator is movably connected to the casing and includes an engaging portion and an abutting portion. The abutting portion extends above the top plate. the engaging portion is received in the casing. When the abutting portion is pushed down, the rotator moves to cause the engaging portion to extend through the engaging opening to engage with the cabinet and to prevent the casing from being pulled out from the cabinet.

Abstract: An exemplary electronic device assembly includes a cabinet and electronic devices received in the cabinet. The cabinet includes four columns substantially positioned at four corners of the cabinet. A window is defined between two front columns. Each electronic device includes a casing, which includes a bottom plate, a lateral side and an actuator. The bottom plate defines an inserting opening therein. The lateral side defines an engaging opening therein. The actuator movably connects to the casing and includes an engaging portion and an abutting portion. The abutting portion extends through the inserting opening. The engaging portion extends through the engaging opening and engages with one of the columns. When the abutting portion is pushed up, the actuator moves and the engaging portion disengages from the column.

Abstract: A mounting apparatus for latching two expansion cards to two expansion slots includes four fixing portions extending up from opposite ends of the expansion slots, four locking members rotatably mounted to the fixing portions for clamping two opposite ends of the expansion cards, and two latching members. Each latching member includes a connecting plate, two latching portions extending up from the connecting plate to latch tops of the corresponding expansion cards, and two resilient hooks extending down from the connecting plate to latch the locking members at the same end of the expansion slots.

Abstract: A fixing apparatus includes a board presenting a number of engaging portions and a post, and a casing for containing a data storage device. The casing includes a bottom wall defining a number of engaging holes, an end wall perpendicularly connected to the bottom wall, and a fixing member pivotably mounted to the end wall. Each engaging hole may engage and lock an engaging portion. The fixing member forms a sliding portion having a slanted outer surface, and a protrusion connected to the sliding portion and is pivoted to move the casing away from the post, until the second holes engage with the corresponding engaging portions, and the protrusion resists against the post.

Abstract: A sliding apparatus includes a sliding member fixed to a first end of a server module, an elongated sleeve shaped first slide rail, and an elongated pole shaped second slide rail. The sliding member includes a first holding portion and a second holding portion each defining a mounting hole. The second slide rail is slidably retained in the mounting holes of the first and second holding portions. A first end of the first slide rail is fixed to a rack. A latch member is fixed to the sliding member for latch the rack. A first end of the second slide rail is slidably received in a second end of the first slide rail. A second end of the second slide rail is fixed to a second end of the server module.

Abstract: A mounting apparatus for fixing an expansion card includes a motherboard, an expansion slot installed on the motherboard, an expansion card inserted into the expansion slot, and two latching members respectively fixed to two ends of the expansion card. Each latching member includes a base plate fixed to the end of the expansion card, and a resilient hook extending from the base plate to latch an end of the expansion slot.

Abstract: A sliding apparatus includes a sliding member fixed to a first end of a server module, an elongated sleeve shaped first slide rail, and an elongated pole shaped second slide rail. The sliding member includes a first holding portion and a second holding portion each defining a mounting hole. The second slide rail is slidably retained in the mounting holes of the first and second holding portions. A first end of the first slide rail is fixed to a rack. A first end of the second slide rail is slidably received in a second end of the first slide rail. A second end of the second slide rail is fixed to a second end of the server module.

Abstract: An electronic device includes a case and a power supply arranged in the case. The power supply includes a first power port to connect to a power line for supplying power to the electronic device. The electronic device further includes an extension cord to connect to the first power port through a plug; the extension cord includes a second power port to connect to the power line. When the plug is connected with the first power port, the power line is connected to the second power port to supply power to the electronic device through the second power port, the extension cord, the first power port, and the power supply; when the plug is disconnected from the first power port, the power line is connected to the first power port to supply power to the electronic device through the first power port and the power supply.

Abstract: An apparatus includes a board presenting a number of engaging portions and a post, and a matching casing containing a data storage device. The casing defines a number of engaging holes and a fixing member on one side. The fixing member includes a first sliding portion and a second sliding portion locating at opposite sides of the post which define a curving slot in which the post can slide. The fixing member is rotated to lock the casing to the board, and rotate back to unlock the casing from the board.

Abstract: A mounting apparatus fixing an expansion card includes an expansion slot, two locking members connected to opposite ends of the expansion slot, for clamping the expansion card, and two latching members pivotably mounted to opposite ends of the expansion card, respectively. A latching portion protrudes from each of the latching members, for latching the corresponding locking member.

Abstract: A server cabinet for retaining at least one computer server includes a plurality of holding poles and a plurality of retaining apparatuses. Each of the plurality of retaining apparatuses is secured to a computer server and clamps a holding pole, such that the computer server is secured on the plurality of holding poles both vertically and horizontally by the plurality of retaining apparatuses.

Abstract: A server cabinet for retaining at least one computer server includes a plurality of perforated holding poles and a plurality of retaining apparatuses. Each of the plurality of retaining apparatuses can be secured to a computer server and clamp a holding pole, such that the computer server is secured on the plurality of holding poles both vertically and horizontally by the plurality of retaining apparatuses.