This is a life saver extension, as normal motherboard only have 1 or 2 front USB connections, this USB 2.0 splitter motherboard included 4 USB 9 pin connector interface, this adapter allow to add these additional PC components to motherboard, and fully integrate with motherboard in spite of its limited number of built-in USB headers. 9pin usb splitter plug in RGB hub, it be can used for RGB fan alone with water cooling system, also as an extra Bluetooth connection for motherboard, the entire process is simply plug and play. Specification: Port Multiplier version: 1 to 4 9 pin ports Cable Length: about 30cm/12inch Package includes: 1 x Motherboard USB 9 Pin Header Male 1 to 4 Female Extender 1 x USB 3.0 to USB 2.0 Adapter Cable