Form factor : Rack 4U Host interface : iSCSI 1Gb Capacity (Max) : 20TB Number of drives : 20 x 1TB SATA 7.200rpm Storage controller : 1 x FAS 2050 Number of PSU : 2 x Dual redundant, hot-swappable Other Connectivity : N/A Rails : Not included Dimensions : 60.9 x 44.9 x 17.5 cm Weight : 50 kg