Material SECC Steel External Drive Bay 5.25" x 3 Internal Drive Bay 3.5 / 2.5 x 6 (Supports up to SATA HDD EZ-Swap Module x 4), 2.5 x 2 M/B Form Factor ATX, m-ATX Power Supply ATX 12V, PSII Size Top Port Fan Speed Controller 3.5 /2.5 SATA HDD EZ-Swap x 1 Front Port USB 3.0 x 1 (Internal Connector) USB 2.0 x 2 HD Audio I/O Expansion Slot PCI-E Slot x 7 (Supports up to 408mm) Thermal Solution Supports up to Total 120mm Fan x 8 (Different Regions May Carry Different Specification) Front - Supports 120mm Fan x 1 (Maximum Supports 120mm Fan x 2) Rear - Supports 120mm Red LED Fan x 1 Side - Supports up to 120mm Fan x 2 (Mesh Side Panel Only) Top - Supports up to 120mm Fan x 2 Bottom - Supports up to 120mm Fan x 1 Maximum CPU Heatsink up to 160mm (From CPU Die Surface to Side Panel) Water-Cooling Hole Ready Dimension (HxWxD) 4 model : INWC-GT1-BK tag : Computer Cases