Mounting the CPU under the desktop keeps it readily accessible. Swivel-Mount Holder supports up to 60 lbs. Extends out 6" on smooth operating ball bearing glides. Swivels 180° for left or right cable access. Adjusts vertically 13" to 22" and from 5-1/4" to 9" wide. Anti-skid pads keep the CPU in place and prevent it from sliding out of position. Steel construction for durability.