Huawei TaiShan 200 (Model 2280), 12*3.5 inch HDD EXP Chassis, 2 x Kunpeng920,[email protected],8DIMM), 2 x 2000W AC Power Module, 2 x HDD,4000GB,SATA 6Gb/s,7.2K rpm,128MB cache or above,3.5inch