Supermicro SuperChassis 920W 2U Rackmount Server Chassis CSE-216BE2C-R920LPB Black Case Type: 2U Rackmount M/B Type: EATX, ATX; Max Motherboard Size - 13.00 x 13.68 inch Processor Support: Dual, Single Intel / AMD Processors Drive Bays: 24x 2.5" SAS/SATA Hot-swap Drive Trays Expansion Slots: 7x Low-profile Expansion Slots Power Supply: 920W 80 PLUS Platinum Certified High-efficiency AC-DC Redundant Power Supplies w/ PMBus and I2C Cooling System: 3x 80mm 7000 RPM PWM Fans Chassis Only. Does not include CPU, MB, HDD, memory or other parts.