Thermaltake The Tower 900 Computer Case - Full-tower - Black, Transparent - Hot Dip Galvanized Steel - 9 x Bay - 2 x 5.51" x Fan(s) Installed - Mini ITX, ATX, Micro ATX, EATX Motherboard Supported - 54.01 lb - 13 x Fan(s) Supported - 1 x External 5.25" Bay - 6 x Internal 3.5" Bay - 2 x Internal 2.5" Bay - 8x Slot(s) - 4 x USB(s) - 1 x Audio In - 1 x Audio Out: