Supermicro Pedestal Server Case CSE-733T-500B Mid-Tower & Workstation chassis support for max. motherboard size - 12" x 13" E-ATX Supports dual, single Intel/ AMD processors Drive Bays: 4x 3.5" Hot-swap SATA Drive Bays, 2x 5.25" Drive Bays and 1x 3.5" Bay Expansion Slots: 7x Full-height, Full-length Expansion Cooling System: 1x 92mm Front Thermal Fan Power Supply: 500W High-efficiency Power Supply 500W High-efficiency Power Supply 4x 3.5" Hot-swap SATA Drive Bays 7x Full-height, Full-length PCI Expansion Slots Mid-Tower & Workstation chassis support for max. motherboard size - 12" x 13" E-ATX 2x USB Front Access I/O