Color:CPF05 CPF05 is a high-quality fan speed reduction cable designed to meet the demand for enthusiasts focused on quietness. It can be easily connected between the motherboard 4pin PWM header and the fan to automatically reduce fan speed and noise. Built differently from some of the cheap and shoddy fan cables on the market that may overheat or eventually burn out, the CPF05 is made with quality materials and fully sleeved for extra protection. Its high capacity, built-in resistor can handle up to 3W 50Ω to provide safe running with some of the highest speed fans. For those with high performance fans, the CPF05 will offer the easiest and quickest way to reduce speed and noise while maintaining PWM control function.