RAIDMAX ALPHA-WLB Black Steel / Plastic ATX Tower Computer Case Motherboard Compatibility: Micro ATX / ATX / Mini-ITX Front Ports: 2 x USB 3.0, 2 x Audio (HD compatible) 120mm Fans: Front: 3 x 120mm (option) Rear: 1 x 120mm (included) Top: 3 x 120mm or 2 x 140mm (optional) Power Supply Mounted: Bottom External 5.25 Drive Bays: 1 Internal 3.5 Drive Bays: 2 (Compatible with 2.5 HDD or SSD)