Sentey Computer Case CS1-1398 PRO The chassis supports an ATX Motherboard, 3 optical drives, 4 internal hard drives and has a 3.5-Inch external bay. The side panel features an opening for a fan and nozzle and a grill to aid in CPU cooling. / Includes mounting points for a 2.5-Inch SSD Sandy black and tool-less design, The front of the case features easy access for all input and output ports. There are 1 each USB 3.0 and USB 2.0 ports, as well as audio, microphone mini-jacks, LED power button and reset button The case chassis is completely composed of laminated steel. It has a gray coating with rounded edges to avoid injury during assembly Case features an 80mm fan grill and 125mm nozzle. It is possible to install either a 120mm or 80mm rear fan