Abstract: A positioning tool includes an actuating member and a rotating member rotatably attached to the actuating member. The actuating member includes a supporting lump. Two positioning pins are located on the supporting lump. The rotating member includes a rotating plate located between the two positioning pins. Three latching pins are located on the rotating plate.

Abstract: A clipping apparatus includes a base, a support bracket, a positioning member and a rotating arm. The support bracket is located on the base. The support bracket is oblique relative to the base and defines a sliding slot. The positioning member is slidably engaged in the sliding slot. A first end of the rotating arm is pivotably engaged with the base. A second end of the rotating arm, opposite to the first end, is secured to the positioning member. An angle defined between the base and the support bracket is adjustable when the positioning member is slid relative to the base.

Abstract: A computer enclosure includes a computer case and a power supply tray. The computer case includes a side plate and a rear plate adjacent to the side plate. A clamping portion is located on the rear plate, and an opening is defined between the side plate and the rear plate. The power supply tray is attached to the opening and includes a clipping member. The clipping member includes a securing portion extending from the power supply tray and a clipping portion rotatably attached to the securing portion. The clipping portion is engaged with the clamping portion to secure the power supply tray to the computer case, and the clipping portion is rotatable relative to the rear plate to disengage the clipping portion from the clamping portion.

Abstract: A clipping apparatus includes a base, a support bracket, a positioning member and a rotating arm. The support bracket is located on the base. The support bracket is oblique relative to the base and defines a sliding slot. The positioning member is slidably engaged in the sliding slot. A first end of the rotating arm is pivotably engaged with the base. A second end of the rotating arm, opposite to the first end, is secured to the positioning member. An angle defined between the base and the support bracket is adjustable when the positioning member is slid relative to the base.

Abstract: A positioning tool includes an actuating member and a rotating member rotatably attached to the actuating member. The actuating member includes a supporting lump. Two positioning pins are located on the supporting lump. The rotating member includes a rotating plate located between the two positioning pins. Three latching pins are located on the rotating plate.

Abstract: A computer enclosure includes a computer case and a power supply tray. The computer case includes a side plate and a rear plate adjacent to the side plate. A clamping portion is located on the rear plate, and an opening is defined between the side plate and the rear plate. The power supply tray is attached to the opening and includes a clipping member. The clipping member includes a securing portion extending from the power supply tray and a clipping portion rotatably attached to the securing portion. The clipping portion is engaged with the clamping portion to secure the power supply tray to the computer case, and the clipping portion is rotatable relative to the rear plate to disengage the clipping portion from the clamping portion.

Abstract: A mounting apparatus includes a chassis; a mounting piece, a securing member, a mounting member, and a clipping member. The mounting piece is attached to a first end of an expansion card and secured to the chassis. The securing member is rotatably attached to the chassis and abutting the mounting piece. The mounting member is secured to the chassis and includes a securing rail and a resilient portion. The clipping member is attached to a second end of the expansion card and engaged with the securing rail. The resilient portion abuts the clipping member to prevent the clipping member from disengaging from the securing rail.