Standard EIA-RS310D M/B Form Factor ATX (12" x 9.6"), CEB (12" x 10.5") Drive Bay External: 5.25" x 3, 3.5" x 1 Internal: 3.5" x 3, 2.5" x 1 Power Supply Supports Form Factor: PS/2, Mini-Redundant Watt: PS2 up to 600W, Mini-Redundant up to 500W Indicator Power Status, HDD, LAN Activity LEDs Front Control Panel Power Switch, System Reset, USB 2.0 x 2 Chassis Security Intrusion Switch Cooling Fan Supports 120 x 25 mm PWM Front Fan x 1 80 x 25 mm Easy-Swap Rear Fan x 2 (optional) Expansion Slot Full Height PCI Slot x 7 Material Material: SGCC Thickness: 1.2 mm Rail Kit Supports 28" Ball-bearing Container Info. Single Packing: 20: 200pcs 40: 420pcs 40HQ: 470pcs Item Dimension (L"xW"xH") 29 x 26 x 14 Weight 76.00 LB Warranty Information 2 years