Abstract: A movable frame is mounted in a computer enclosure for retaining a computer component, such as a power supply, in the computer enclosure. The frame includes a tray for supporting the power supply thereon and an elongate arm extending from the tray. A first end of the arm is pivotally attached to the computer enclosure by a vertically extending pivot pin whereby the frame is horizontally movable between a retracted position and an extended position for selectively positioning the power supply out of the computer enclosure. Openings may be defined on a second end of the arm for engaging with projections formed on the computer enclosure for securing the second end of the arm to the computer enclosure.