SMAKN&reg; USB 3.0 Extension Cable Usb 3.0 Male to Usb 3.0 Famle-30cm USB 3.0 A Male to A Female Cable Extend your USB cables/ devices (keyboards, hard disks any many more). Transfer your data with USB 3.0 speed ( Up to 5 Gbit/s) Completly backwards compatible with older USB versions like USB 2.0 Perfect manufacture (Please refer to the below manufacturer description regarding the production and quality control)