Key Features External adapter on internal PSU 1 x 5.25" or 1 x Slim ODD & 3.5" drive bay Meets Ro HS, CE & FCC Class B Requirements Specifications Case size: S.F.F Slim Chassis M/B Form Factor: Mini-ITX Mini-DTX Cooling: System Fan: 80mm x 80mm x 20mm Power Supply: 160W internal PSU (IN-WIN IP-AD160-2) I/O Expansion Slots: Low profile card slot x 2 Dimension (D x W x H): 264mm x 112mm x 230mm USB (Universal Serial Bus) Slots: 2 x Front External USB (Universal Serial Bus) 2.0 Connectors Audio: Front HD Audio Connector