1.This 4 pin RGB hub can extend any 12V addressable RGB products simultaneously, while only taking up one RGB header on your motherboard. 2. Note:This hub is only compatible with 4pin 12V addressable RGB headers or controllers. not connect to 5V RGB components, making sure the arrows on connectors and headers line up. 3. The function of this hub is to expand the scarce RGB interface on the motherboard. One RGB interface is divided into ten, which is used to control multiple RGB light strips and other devices. It can't power the fan. 4. RGB cable length: 20in 、Product Dimension: 3.5 x 2x 0.6in 5. High-quality PCB, very durable,Adhesive tape on the back for easily fixing the hub in the chassis