Note : A rail kit for this product is available here . The Codegen V2 4U 500mm rackmount is a computer chassis featuring a number of different power form factor and storage device options. The V2 provides the best support for various rackmount systems and different applications, with several fan options which can deliver an exceptional thermal performance you can rely on. You can fit 2 x 80mm fans at the back and a 1 x 120mm fan at the front (which is included). The front door with key lock delivers confident protection against unauthorised access and theft for peace of mind. A spacious interior provides sufficient room to accommodate your powerful hardware, such as ATX motherboards and up to 9 internal 3.5" HDDs, 3 x 2.5" HDD and seven expansion slots, so users can expand their server system easily. Clearances Max GPU Length: 255mm Max CPU Cooler Height: 120mm