Specifications: Interface: USB C3.1/USB C charging/ 1.4/USB 3.0x1/USB 2.0x2/SD/TF Resolution: 3840x2160 30HZ/4096x2160 30HZ/1920x1080 60HZ/1280x720 60HZ USB 3.0 read and write speed: Max 5Gbps USB2.0 read and write speed: Max 480Mbps (Only includes the docking station and does not include other display products) Material: PCBA+Plastic colour: Black Package Contents: 1 x docking station 1 x Chinese and English instructions Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. docking station USB C charging base Mobile computer USB extension docking station type c to hdtv 8 in 1 docking station type c to hdtv