Materials: Heavy-duty cold-rolled steel

Finish:

Cooling: Rear: 9 x 40 x 56mm hot-swap fans for HDD Bays + 4 x 60 x 38mm fans for MB  

Power Supply: 135R  1350W 3+1 redundant power supply (4 x 500W modules)

Expansion: Up to 7 x PCI slots (full height, full length) (depends on the MB)

Controls: Power on/off, system reset + USB Indicators for Power, LAN and HDD LED’s 

Drive Bays:

- External: 5.25" x 0; 3.5" x 0; 3.5" hot-swap x 48; 2.5" hot-swap x 0

- Internal: 3.5" x 0; Slim CD-Rom/DVD-Rom x 0; Slim FDD x 0