Features: USB-C female to USB-A male(USB3.0) , connection conversion head , fast charging and data transfer, plug & play , mini size easy to carry with a rope , more convenient. Material: aluminum alloy Unit package size: 155 * 75 * 15mm; Weight: 26g Plug: USB A / M (blue rubber core) to type-C female (white rubber core) Parameters: nickel plated shell and gold plated pin, L = 28.8mm (USB version 3.0).