100pcs/pack Wholesale 19 20 Pin USB 3.0 Male To 9 Pin USB 2.0 Female Motherboard Mainboard Header Adapter Cable USB2.0 to USB3.0 Converter Cable 15CM This ULT-Best Internal USB Converter - Let your USB 3.0 20pin device connected the USB 2.0 motherboard. Data speed: 480Mbps for USB 3.0 device. 1.19 pin USB 3.0 Female to 9 pin USB 2.0 male 2. Support external USB 3.0 front panel connectors to USB 2.0 motherboard connectors 3. Allowing you to connect internal USB devices directly to the motherboard header connection 4. Upgrading to your motherboard and front panel connectors 5. The adapter cable offers a cost-effective solution for connecting multi-function front panels to motherboard 6. The USB 2.0 male to motherboard towards to USB 3.0 to front panel USB header adapter cable is constructed of high quality materials and expertly constructed for durable performance.