Full Details from Amazon.com : http://www.amazon.com/gp/product/B007C82286?tag=onigi-20
NORCO 2U Rack Mount 1 x 5.25-Inch Drive Bay 4 x 3.5-Inch Drive Bays Server Chassis RPC-240
2U rack mount design meets EIARS-310C standard
1 x 525 drive bay 4 x 35 drive bays maximum 5
Support Micro-ATX 96 X 96 motherboard and Mini-ITX 67 X 67 motherboard
2x80mm front ball bearing fans for better ventilation
Front accessible USB port