PC chassis fan hubPC Chassis Fan Hub Computer Temperature Controller 4pin CPU Cooling Hub for Computer Case with PWM CableSolve the lack of motherboard interfaces and focus on dealing with fan wires.+ productThe PWM interface is connected to the motherboard CPU fan interface, and the red interface is the CPU fan dedicated interface (with speed measurement function). The black interface is a PWM interface for conventional fan (no speed measurement signal, but does not affect the PWM function).Power supply can be directly supplied by the power supply to reduce the load pressure of the main board. The PWM temperature control line is connected separately from the motherboard, so the power supply and temperature control are correct.Suitable for 12V motherboard 3/4 pin fans. (3 pin fan can also be used, but it runs at full speed when plugged in, because 3 pin fan has no PWM speed control function).Expand a single motherboard's four-pin port into multiple ports for uniform speed adjustment. (If your fan is a 3-pin fan, you can also plug it in, but it is not possible to control the speed by PWM.)There is adhesive on the back of the hub PCB board for easy sticking on a flat place, and there is a fixed screw hole.Item Type: PC Chassis Fan HubMaterial: MetalSuitable: For 12V motherboard 3/4pin fans.It can also be used for 3pin fans, but it runs at full speed when plugged in, because 3pin fans do not have PWM speed control function.Interface Type: Large 4D Interface, SATA InterfacePackage List:1 x PC Chassis Fan Hub1 x CableNote :Avoid speed measurement confusion, computer crashes, extended multi-channel interface from one interface, display only the speed measurement of one of the fans.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.FeaturesCondition: 100% Brand NewMaterial: MetalInterface Type: Large 4D Interface, SATA Interface