USB 3.0 Type-A Male to USB 3.0 Type-A Female Extension Cable 20cm 5Gbps Offers a throughput of up to 5Gbps when used with a USB 3.0 host and device,an astounding 10x the capability of USB 2.0 (480Mbps). Backwards compatible with USB 2.0 1.1 1.0 Length about: 20cm