Supermicro Chassis - Pedestal 4 x 3.5" HOT-SWAP HDD 250W PSU (SM-CSE-721TQ-250B) - Form Factor: Compact Mini-Tower Chassis for motherboard support size: (6.75" x 6.75"), Processor Support: Single Intel and AMD processors, Total Output Power and Input: 50W with Input 100 - 240Vac, Output Type: 24pin ATX, Expansion Slots: Up to 1 low-profile expansion slot(s), Drive Bays: 4 x 3.5-inch hot-swap SAS/SATA, 2 x 2.5-inch fixed drive bay, Peripheral Drives: 1 x slim DVD-ROM drive bay, Backplane: 4 x3.5-inch SAS2/SATA3 backplane w/SES-II, Fans: 1 x 12cm rear exhaust fan(s)