ITEM NAME:HOT USB 3.0 20 Pin Male Header to USB 2.0 9 Pin female Adapter for motherbo R1O2 Description&Preview.USB3.0 to USB2.0 data cable 20pin transfer 9pin male pin row bus cable. Transfer the 20Pin USB3.0 interface on the motherboard or PCIE switch card to the front panel to convert two standard USB3.0 interfaces to the front of the chassis for user convenience.
