3U rack mount design, meets EIARS-310C standard. Usage: A/V system, DVR, Home Theater server and corporate server - 14 x 3.5 ' Internal drive bays - Can be modified to have 10 x 3.5' Hot Swap, 4 x 3.5' internal drives using the TGC-H500 Caddy or other alternatives - OR 4 x 3.5” Internal drive bays, 6 x 5.25” bays - OR 9 x 3.5” internal drive bays, 3 x 5.25” bays - Support EEB (12' x 13'), CEB(12' x 10.5'), ATX (12' x 9.6'), Micro ATX (9.6' x 9.6'), Mini ITX (6.7' x 6.7') motherboard - 4 x 80mm ball bearing fans in middle wall, 2 x 60mm rear fans, 2 x 120mm front fan - Two front accessible USB ports - RoHS Compliant