Antec (USA) Top Quality "P193" ATX Mid Tower, Black, NO PSU, 2x USB 2.0/ 1x eSATA/ Audio In and Out (HDA and AC'97 compatible) front ports, Innovative two-layer, sound-deadening side panels (steel, polycarbonate) and three - layer front door (aluminum, plastic, aluminum) dampen noise and ensure Quiet Computing. 11 drive bays: 4 x 5.25"; 1 x 3.5" (External), 6 x 3.5" for HDD (Internal). Cooling System: 1 x rear (standard) 120mm exhaust TriCool fan, 2 x top (standard) 140 mm exhaust TriCool fan, 1 x lower chamber (standard) 120mm TriCool fan, 1 x side (standard) 200 mm fan for dual graphic cards, 1 x front (optional) 120 mm fan for HDD, 1 x middle (optional) 120 mm fan for graphics cards, 7 Expansion Slots, Double hinged door opens up to 270 degree. Cable Organizers behind motherboard tray minimize cable clutter, Dual Chamber design isolates heat and noise: the power supply resides in a seperate chamber to isolate heat and reduce system noise, supports Mini-ITX, microATX, Standard ATX and Extended ATX motherboards