4-PIN INTERFACE:4-pin PWM fan power supply splitter extension cable can extend 1 CPU fan port to 5 fan ports to solve the lack of pc case fans ports and reduce the load on the motherboard. EASY TO INSTALL:Just insert the PWM chassis fan splitter cable into the motherboard, and then paste the other end to the chassis with double-sided tape. No need to drive. CONNECTOR TYPE:1 TX4 4-pin Female, 1 TX4 4-pin Male for CPU fan (including Detect tach pin), and 4 TX4 4-pin Male for case fan.Compatible with all 12V 4 pin and 3 pin PC case fans. NYLON BRAIDED CABLE:15-inch fan HUB cable with black braided sleeve and tinned copper wire, lower resistance, stable and durable quality. NOTE Only 1 interface supports speed measurement because the motherboard does not support multiple interfaces at the same time.3-pin does not support temperature control.