Mount your server network and telecom devices to the wall while storing your non rackmountable equipment on the built in shelf this wall mount rack provides 4u of space for mounting your servers or av equipment to a wall the rack has a built in shelf that you can install at either the top or bottom of the rack to create a sturdy surface for storing equipment thats not rack mountable the wall mount bracket features a dual position 12 in shelf that depending which way you mount the ra