This product is a type-C to computer mobile phone peripheral circuit, expanding a type C to an HDMI HD interface and three USB 3.0 interfaces. It supports video data exchange and transmission under the standard typec interface. The output video specification of HDMI interface is 4K. This product can enjoy high-definition video and audio while supporting USB 3.0 data exchange. It is in line with the use standards of contemporary working and family people, and will become one of the important external accessories in your life!Functional features:Expand 3 USB 3.0 interfaces and 1 HDMI HD interface by type-C portThe product conforms to USB3.0 specification and is downward compatible with USB2.0 / 1.1 standard.The product conforms to HDMI 4K high definition signal output standard and is compatible with 1080p / 720p.Support WinXP, 7, 8, 10, vista, Linux, Mac OS and other systemsDrive free installation, easy to use, plug and playLow power consumption and low working heating temperatureWarm tip:This product only supports devices that conform to the standard typec protocol, similar to Huawei. Xiaomi's early production of mobile phones with typec interface can not meet the work requirements of this product!