Zalman Z9 U3 Mid Tower Computer Case Z9 U3 Material: Plastic, Steel Motherboard Compatibility: Standard ATX / m-ATX Power Supply Compatibility: Standard ATX / ATX12V VGA Compatibility: Full Size (290mm) Mic x 1, Headphones x 1, USB 2.0 x 2, USB 3.0 x 2, Fan Controller, Case Type: ATX Mid Tower, M/B Type: Standard ATX / MicroATX Material: Plastic, Steel, and Aluminum External Bay: 3x 5.25", 1x 3.5", Internal Bay: 5x 3.5", 1x 2.5"/3.5"/5.25" Expansion Slots: 7 Fan: 5, 120mm Front I/O Panel: 2x USB 3.0 Ports, 2x USB 2.0 Ports, 1x Microphone, 1x Headphone