This 17cm (7in) USB 3.1 (C) male to USB 3.0 (A) female black adapter cable will allow your USB 3.1 (C) equipped laptop or computer to plug into any USB 3.0 (A) device such as printers, external hard drives, tablets or any other USB (A) equipped devices. Reversible USB Type (C) makes it easy to connect without having to see which side is up or down.