Details : Antec P183 "Performance One" Black ATX Mid Tower - NO PSU, 11 Drive Bays, up to 5 Configurable Fans, Front USB/eSATA/Audio Antec (USA) Top Quality "P183" ATX Mid Tower, Black, NO PSU, 2x USB 2.0/ 1x eSATA/ Audio In and Out (HDA and AC'97 compatible) front ports, Innovative three-layer, sound-deadening side panels and 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 TriCool fan, 1 x top (standard) 120 mm TriCool fan, 1 x lower chamber (standard) 120mm TriCool fan, 1 x front (optional) 120 mm fan, 1 x middle (optional) 120 mm fan, 7 Expansion Slots, Double hinge 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 motherboards up to Standard AT X