U428-000-F The U428-000-F USB 3.1 Gen 1 Adapter connects your new USB-C smartphones, tablets, Ultrabooks and computers to your existing USB-A devices or cables in order to share data or charge a mobile device. It supports USB 3.1 Gen 1 data transfer speeds up to 5 Gbps and power output up to 3A for fast charging of mobile devices. Unlike traditional USB cables that can be attached only one way, the reversible USB-C male connector plugs into a USB port in either direction for fast, fumble-free connection every time. Nickel-plated molded end connectors and gold-plated copper contacts ensure superior conductivity and long life. Slim form supports evolving design trends toward smaller devices. Backward compatible with USB 2.0 devices.USB Type-C™ and USB-C™ are trademarks of USB Implementers Forum