Linkworld Electronic Slim Micro ATX Case - 617-03 C2228U (Black & Silver) Case Type: Micro ATX / Mini iTX Case Motherboard Compatibility: Micro ATX/Flex ATX / Mini iTX Power Supply: XFS 300W 80 Plus Bronze Certified Power Supply Frontal 2 USB 2.0 and Audio Jack (AC97 & HD ) Two Rear 60mm Case Fans Exposed Drive Bay: 1 x 5.25" ODD and 1 x 3.5" HDD Internal Drive Bay: 1 x 3.5" HDD 4 Expansion Slots Fits Mini ATX Motherboard 2 x 60 mm Cooling Fans Rear Installed Side Panel with Mesh to Increase Air Flow 1 X 5.25" External Bay for ODD and 1X3.5" External for HDD Plus 1X3.5 Hidden Bay Cooling Fan: 6 cm Fan x2 Rear Installed 2-Port Frontal USB2.0 Frontal HD+AC97 Audio Jack & MIC 3 Expansion Slots