Abstract: A fixing bracket for a computer accessory and a computer case thereof are discloses. The fixing bracket is for the installation of the computer accessory. The interior of the computer case is used for the assembly of the fixing bracket. The fixing bracket includes a carrier, a clamping part, and a limiting part. The carrier plate has a surface for stacking the computer accessory, and a first side edge and a second side edge opposite to one another. The clamping part is disposed on the first side edge. The limiting part is disposed on the second side edge. The computer accessory is stacked on the carrier plate. The clamping part clamps one end portion of the computer accessory and the limiting part tightly presses against the other end portion of the computer accessory such that the computer accessory is attached against to the carrier plate.

Abstract: A fastening device for securing and protecting an electronic device is provided. The electronic device is provided with at least one assembly hole. The fastening device includes a fastening assembly and a plate. The fastening assembly includes a buffer and a fastening element inserted through the buffer. The fastening element includes a rod portion, a fastening portion at one end of the rod portion, and a head portion at the other end of the rod portion. The fastening portion is fastened in the assembly hole. The plate includes a first positioning hole and a second positioning hole communicating with the first positioning hole. A diameter of the first positioning hole is greater than a diameter of the second positioning hole, and a diameter of the head portion is less than the diameter of the first positioning hole and greater than the diameter of the second positioning hole.

Abstract: A heat sink fastener includes a heat sink assembly, a first stand, a second stand, a fastening plate, a fastening member, and a movable bar. The first stand includes a fastening portion. The second stand includes a restriction portion. The fastening plate is connected to the heat sink assembly. The fastening plate includes a hook portion, an extension portion, and a through hole. The hook portion is engaged with the fastening portion. The extension portion contacts with the restriction portion. The fastening member is inserted through the through hole and secured the second stand. The fastening member includes a bolt and a screw nail. The screw nail is provided with a pushing portion. The movable bar is connected to the second stand. The movable bar includes a pivot shaft, a restriction end restricting the pushing portion from movement, and a release end releasing the pushing portion to move.

Abstract: A tunable earphone includes a body, a front cavity, a rear cavity and a decorating plat. The body includes a small air hole and a large air hole. The front cavity and the rear cavity are respectively disposed on the body. The decorating plate covers the rear cavity and includes a receiving groove, a shielding member and a channel. The shielding member and the channel are disposed in the receiving groove. When the decorating plate is rotated to a first position, the shielding member shields the large air hole, the channel corresponds to the small air hole, so that the front cavity communicates with the rear cavity through the channel. When the decorating plate is rotated to a second position, the shielding member shields the small air hole, the channel corresponds to the large air hole, so that the front cavity communicates with the rear cavity through the channel.