High quality PWM fan extension cable, offers greater flexibility to position Motherboard and CPU Fans for optimal cooling, for extending fan cables in your case. | Black sleeved nylon braided cable, more durable and make the inside of pc case looks more clean & tidy. | The cable is one 4-pin female connector to 4-pin male connector, suits for CPU or PC case fan. | Easy to plug, the fan extension cable offers greater flexibility between Motherboard and CPU cooling fans. | 4-Pin male to female fan extension cable, compatible with 4pin PMW fan connector and 3pin fan connector.