Zalman High Performance Mid Tower Case Z11 Plus Material: Plastic, Steel Motherboard Compatibility: Standard ATX / Micro ATX Power Supply Compatibility: Standard ATX / ATX 12V VGA Compatibility: Full Size (up to 290mm) Mic x 1, Headphones x 1, USB 2.0 x 2, USB 3.0 x 2 Case Type: ATX Mid Tower Material: Plastic, Steel M/B Type: Standard ATX /MicroATX External Bay: 4x 5.25", 1x 3.5", Internal Bay: 5x 3.5", 1x 2.5" Expansion Slots: 7 Front I/O Panel: 2x USB 3.0 Ports; 2x USB 2.0 Ports; 1x Headphone; 1x Microphone Power Supply: None; Supports Standard ATX /ATX12V, Side Windows: Yes