USB 3.0 to USB 2.0 Connector A: 20 Pin USB 3.0 Male Adapter.USB 3.0 to USB 2.0 Connector B: 9 Pin USB2.0 Female Adapter. 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. 20 pin USB 3.0 motherboard adapter offers a throughput of up to 4.8Gbps when used with a USB 3.0 host and device , which astounding the capability of USB 2.0 (480Mbps). USB 3.0 to USB 2.0 motherboard adapter cable complies with fully rated cable specification using braid-and-foil shield protection.. USB 3.0 technology of USB 3.0 motherboard adapter is similar to PCI Express 2.0(5 Gbit/s) It uses 8 B10B encoding,linear feedback shift register (LFSR) scrambling for data, spread spectrum. Type USB Cable.
eBay