A moving assistance structure coupled to an end of a component for assisting in pushing the component into a cabinet or pulling the component out of the cabinet includes a mounting member and a driving member. The mounting member is mounted to the component. The driving member is rotationally coupled to the mounting member and includes a first abutting portion and a second abutting portion. The first abutting portion abuts the cabinet when the driving member is rotated along a first direction to push the component into the cabinet. The second abutting portion abuts the cabinet when the driving member is rotated along a second direction opposite to the first direction to pull the component out of the cabinet.

A tool-free hard disk bracket includes a base having abase body with a guide groove, and an engaging member connected to the base body. A frame includes a first side arm movably engaging with the engaging member. A handgrip is rotatably connected to one end of the base body. An operating unit includes an operating member releasably engaging with the handgrip and having a rotating shaft portion inserted rotatably and movably into the guide groove. The operating member is operated to rotate and release engagement with the handgrip, and is further operated to move along the guide groove toward the engaging member to push the engaging member to pivot and release engagement with the first side arm.

An electronic device includes: a first board configured as a printed circuit board having an electronic circuit component mounted thereon; a second board configured as a printed circuit board having an electronic circuit component mounted thereon; a board-to-board connector configured to electrically connect the first board and the second board, the board-to-board connector including a first terminal on the first board and a second terminal on the second board, the second terminal being configured to be connected to the first terminal; and a grip member on the second board.

An example tool for disconnecting a connector from a circuit board includes: a first arm having first handle and a first notch, where the first notch is for engaging a first connector connected to the circuit board; and a second arm having a second handle and a second notch, where the second notch is for engaging a second connector connected to a cable. A hinge connects the first arm to the second arm. The hinge is biased so that, when the tool is not in use, the first handle and the second handle are farther apart than are the first notch and the second notch.

A server structure includes a tray, a carrier and a releasing knob. The tray has an internal bottom surface, and a latch and a stopping arm are arranged thereon. The latch protrudes in the tray and parallel with the internal bottom surface. The stopping arm extends along the internal bottom surface and a stopping portion is defined thereon. The stopping portion protrudes from the internal bottom surface. The carrier for accommodating a hard disk drive is accommodated in the tray. A positioning pin for latching the hard disk drive protrudes in the carrier, a fixing hole is defined on the carrier, the latch is inserted in and latches the fixing hole, and the carrier is pressed by the stopping portion. The releasing knob is pivotally connected with the carrier and pressing the stopping arm and pivoting to press the stopping arm, and the stopping portion is thereby retracted.

A pre-strain unit for a T-bolt during a release process of two components connected by the T-bolt comprises a slider and a frame for providing a linear guiding for said slider during the release process. The pre-strain unit also includes means for pre-straining said slider in said frame against a head of said T-bolt to keep, during the release process, at least a part of the T-bolt protruding from the two connected components.

A lifting mechanism is adapted to bear an expansion unit, and the expansion unit contacts or is separated from a heat dissipating module. The lifting mechanism includes an outer casing base and a bearing base. The bearing base is disposed on the outer casing base liftably along a first axis. The expansion unit is disposed on the bearing base. When the bearing base is located at an original position relative to the outer casing base, the expansion unit on the bearing base is separated from the heat dissipating module. When the bearing base is lifted relative to the outer casing base along the first axis to a lifting position, the expansion unit on the bearing base contacts the heat dissipating module. An electronic device having the lifting mechanism is further provided.

A method and a device for locking an equipment with a rack are presented. The device may include a trigger and an equipment locking mechanism, wherein upon the trigger automatically activates the equipment locking mechanism upon contacting a portion of the rack. The automatic locking initiates when the equipment reaches a desired position within the rack.

According to one embodiment, a method for placing an adapter card on a system board of a computer system includes, aligning a tool having an adapter card secured therewith to a slot on a system board of a computer system using a positioning member, and seating the adapter card into the slot on the system board. The tool includes a carrier for supporting the adapter card, at least one lower retaining member extending from a lower portion of the carrier for securing the adapter card to the carrier, at least one upper retaining member extending from an upper portion of the carrier for securing the adapter card to the carrier, and the positioning member coupled to the carrier.

A lifting mechanism is adapted to bear an expansion unit, and the expansion unit contacts or is separated from a heat dissipating module. The lifting mechanism includes an outer casing base and a bearing base. The bearing base is disposed on the outer casing base liftably along a first axis. The expansion unit is disposed on the bearing base. When the bearing base is located at an original position relative to the outer casing base, the expansion unit on the bearing base is separated from the heat dissipating module. When the bearing base is lifted relative to the outer casing base along the first axis to a lifting position, the expansion unit on the bearing base contacts the heat dissipating module. An electronic device having the lifting mechanism is further provided.