Thermalright C12015B cpu fan computer case fan quiet 4pin PWM PC fan, 15mm Slimline cooler fan, 120mm cpu cooling fan(Black). Manufacturer: THERMALRIGHT. Perfect Match The fan can be used not only as a case fan, but is also suitable for use with a cpu cooler to create a cooling effect together, which can take away the dry heat from the case and the high temperature generated by the CPU in operation, allowing for maximum cooling; Ideal for cases, radiators and CPU coolers.