The slide-out RM-KB rackmount computer keyboard occupies one rackspace and includes a high-quality, full 101 key AT style keyboard, with trackball and padded wrist-rests. The articulating arm provides effective cable management. Complete with 12’ keyboard and trackball cables, including PS/2 and USB adapter. Finished in a durable black powder coat. Racking Height: 1-3/4" (1 space).