18U 4-POST CABINET: Server rack cabinet features all metal 4 post design with 18U, adjustable depth, casters & leveling feet, removable locking sides/doors & top/bottom/front/rear cable access. Knock down network data equipment enclosure comes in an easy ship flat pack, with clear assembly instructions & supporting videos; includes tools needed for assembly. EIA/ECA 310-E standard server rack cabinet with internal depth of 39" and an adjustable mounting depth of 6-32" in a compact 39" tall design. Mobile computer rack features a 1768 lb capacity, solid metal floor which can be used as a shelf, casters & leveling feet & rear and top mesh w/ vented lockable glass front door. StarTech.com offers a lifetime warranty and free lifetime technical support on this cabinet.