APC NetShelter Open Frame offers a high-quality four-post rack for storage of industry-standard (EIA-310). Mount 19-in rack-mount hardware, which includes servers and voice, data, networking, internetworking, and APC power-protection equipment. Rack has a static load of 907 kb (2000lb) and a max equipment depth of 747 mm. The 4 post design includes square 9.5 mm holes.