1、USB interface device universal, support USB flash disk, keyboard, mouse, USB printer and so on. 2、Metal case more durable, shell using aluminum alloy material, longer service life. 3、Tablet PC connected with keyboard and mouse, writing easier, writing documents, chatting, playing games, faster and more convenient. 4、Mobile phone/tablet PC connect the gamepad to play games freely, mobile phone and tablet PC change into game machine for more convenient operation. 5、Fast transfer, no waiting, fast transfer of file data, instant transfer of movies. 6、Mobile phone connect USB flash disk, movie/document at any time to watch, no net, directly read the movie/file stored in USB flash disk. 2 x OTG Adapter with Chain  Condition: 100% Brand NewItem Type: OTG Adapter with Chain Material: Aluminium Alloy ShellOptional Color: Black, Silver, Gold, Rose GoldQuantity: 2PCSInterface Type: Type-c Interface, USB 3.0 Interface, Interface for AndroidWeight: Approx. 16g