This cable features a 20-pin USB 3.0 and also 9-pin USB2.0 motherboard header connection on one end, breaking off into two separate USB 3.0-A (female) connectors on the other end of the cable. This special featured is you can use the 9 pin female so that you can plug to your USB2.0 motherboard to give USB A Female. It also has a 20 pin female so that you can plug to USB3.0 motherboard to give USB A Female. If your motherboard is now USB2.0, you can use this cable. In a later time, when you decided to change to USB3.0 motherboard, this cable still can be used. You do not need to buy a new cable. The dual USB ports are ready with Screw Hole Ear for easy fixing on Front Panel Mount PCI Slot. Features: Brand by Akiba-Accessories This is a dual use adapter cable. It has a 9 pin female so that you can plug to your USB2.0 motherboard to give USB A Female. It also has a 20 pin female so that you can plug to USB3.0 motherboard to give USB A Female. Converts 20 pin or 19pin Header to Dual USB3.0 e OR 9 pin Header to Dual USB2.0 Unique Flat cable, good for internal casing ventilation and easy to hide or place inside a PC. The two USB A female cable are free to move (not attached to each other). You can have more freedom on positioning on the front panel. 2 of the USB A female ports carry screw hole ear for easy fixing on the front panel / PCI slots Compliant to USB 3.0 as well as USB 2.0 standard USB3.0 Max. speed 5Gb/s; USB2.0 480Mb/s Connector A : 1 X 20 pin USB 3.0 Motherboard Header Female OR 1 X 9 pin USB 2.0 Motherboard Header Female Connector B : 2 X USB 3.0 Type A Female OR USB2.0 Type A Approx Length : 0.5m Color : Black (Note : Photo attached is for reference only, it may be slightly varied in items of colour, shape from the actual item delivered from time to time)