Motherboard ATX Power supply: 430W Fan: 8cm Drive Bays 5.25" extern: 3 3.5" intern: 3 Front Connectors USB 2.0: 1 and USB 3.0: 1 Microphone: 1 Headphone: 1 USB 2.0, USB 3.0 and audio connectors as block connector HD Audio/AC-97 compatible