Supermicro SuperChassis 216BAC4-R1K23LPB - Rack-mountable - Black - 2U - 24 x Bay - 3 x 3.15" x Fan(s) Installed - 2 x 1200 W - Power Supply Installed - ATX, EATX, EE-ATX Motherboard Supported - 8 x Fan(s) Supported - 24 x External 2.5" Bay - 7x Slot(s)