A. Usb & audio in the front panel B. Matched m/b: atx C. Expansion slot: 7pcs D. Option: 8cm air-duct(or 8cm fan)on the side Transpanel side panel with three color fan A.Driver bays:5.25''x4;3.5''x5 B.Carton size: 450x220x450mm C. Shipment:40hq:1500pcs