Supermicro Chassis - Pedestal 4 x 3.5" Fixed HDD 300W PSU (SM-CSE-731I-300B) - Form Factor: Mini-Tower Chassis - supports for maximum motherboard sizes of 9.6-inch x 9.6-inch, Processor Support: Dual Intel and AMD processors, Total Output Power and Input: 300W with Input 100 - 240Vac, Output Type: 24pin ATX, Expansion Slots: 4 full-height&full-length expansion slot(s), Drive Bays: 2 x 5.25-inch drive bay, 4 x 3.5-inch fixed drive bay, Fans: 1 x 9cm (2050 RPM) rear exhaust fan(s), Ports: 2 x USB 2.0 Port(s)