Upgraded version of NSK4480 now comes with front panel HD Audio In and Out jacks & thermally Advanced Chassis TAC 2.0 air guide compatibility. High-efficiency EarthWatts 380 Watt ATX12V v2.2 power supply - Universal input - Active PFC and high efficiency design for superior environmentally friendly operation - 80 PLUS Certification means you ll save money on your power bills Advanced cooling system: - 1 Rear 120mm TriCool 3-speed fan - 1 Front mount for optional 80mm fan - 1 Advanced Chassis Air Guide, with mount for optional 80mm fan. EarthWatts 380W ATX12V v2.2 power supply with universal input and active PFC so you can place its beauty anywhere you want. Quiet computing 8 Drive Bays - Front Accessible: 3 x 5.25 , 2 x 3.5 - Internal: 3 x 3.5 with silicone grommets to isolate drive vibrations 7 Expansion Slots 2 x USB 2.0 front bezel ports 0.8mm cold-rolled steel construction Motherboard: Fits micro and standard ATX. ROHS.