Supermicro SuperChassis 846XE2C-R1K23B - Rack-mountable - Black - 4U - 32 x Bay - 5 x 3.15", 3.62" x Fan(s) Installed - 2 x 1200 W - Power Supply Installed - EATX, ATX Motherboard Supported - 24 x External 3.5" Bay - 2 x Internal 3.5" Bay - 2 x External 2.5" Bay - 4 x Internal 2.5" Bay - 13x Slot(s)