20 Pin USB 3.0 female to 9 Pin Male USB 2.0 Motherboard Cable Adapter 480Mbps

The cable can let the USB 3.0 20 pin device connected to the USB 2.0 motherboard, such as CD-ROM, floppy drive panel. 19 pin USB 3.0 feMale to 9 pin USB 2.0 male. Supports external USB 3.0 front panel connectors to USB 2.0 motherboard connectors.