19/20 Pin USB 3.0 Male To 9 Pin USB 2.0 Female Motherboard Header Cable Adapter
Connector: USB 2.0 9Pin Motherboard Female to USB 3.0 20Pin Housing Female. Let your USB 3.0 20pin device connected the USB 2.0 motherboard. Connector A: USB 2.0 9-Pin female. Connector B: USB 3.0 20-Pin male.