A telescoping assembly for use with a CPU holder including a mounting track with mounting holes for securing the mounting track to the underside of a generally horizontal surface such as a desk; runners disposed in the mounting track; a telescoping track, adapted for insertion into the mounting track and to engage with the runners therein; a pivoting member, adapted for engagement with the telescoping track and to engage with a CPU holder, the pivoting member comprising a track engagement member and a CPU holder engagement member being joined for 360° rotation about a vertical axis therethrough; and wherein the telescoping track is adapted for translation along the mounting track from a retracted position to an extended position, and when the telescoping track is in the extended position a CPU retained in the CPU holder is positioned past the edge of the generally horizontal surface.