RoHS Compliance Yes Form factor 4 U Standard Drive Bays 3.5" Drives: 1 3.5" Drive (internal): 2 5.25" Drives: 4 Indicators Power, HDD, Temperature, Fan (Fan/Temp require sensor board TC-ISF08 ) Switches Power, Reset Supported PSU Type PS2, Mini Redundant Expansion Slots 7 Security Front Bezel Key Lock Material of Front Bezel Aluminum alloy Material of Handle SECC Zinc-Coated Steel Material of Main Chassis 1.2mm SECC Zinc-Coated Steel (Japan Made) Color of Front Bezel Blue Color of Main Chassis Black Front Connector 2x USB 2.0 Motherboard Size 12 x 9.6 (ATX, microATX) Cooling Fan 1x80mm, 1x120mm Optional Fan: 80mm x1 Item Dimension L"xW"xH") 27 x 22 x 12