Wall Mount Server Cabinet IT Network Rack Cabinet Enclosure 7X3.5 HDD Drive Bays. ????????????????????????????????? &??????????????????????????????????????? Combined internal architecture, wide space, no pressure for later hardware expansion. ???????????????????????? Special design of fixing PCI card in the system 7 pieces max. This rugged 4U rack drawer supplies additional storage space for mission-critical hardware, tools, network, server or audio / video accessories. ???????????????????????? Front door with key lock for better security. Front door foam filter design for minimize dust inflow. Motherboard Compatibility: 12 x 9.6 ATX/M-ATX/Mini-ITX (smaller than 305mm245mm). ?????????????????????????????????? Constructed with cold-rolled steel, the sturdy IT-grade storage rack drawer ensures long term durability. Dual USB 2.0 connector in front panel. ?????????????????????????????????????? It locks securely with the included keys to help prevent damage, tampering or theft. 22.44 inches x 21.65 inches x 10.24 inches. Weight: 17.56 lb. 21.65 x 22.44 x 10.24 inches. 17.72″x16.93″x6.97.