Specifications Compatible Systems:Windows,MacOS,Linux,iPad OS,Android Compatible Game Console:Nintendo Switch Compatible PC Devices:Laptop Hign-concerned Chemical:None Length:15cm Package:No Model Number:HDTV03 Certification:CE Funtion:USB-A,USB-C,Charging,HDMI-Compatible Standard:USB 3.0 Interface Type:USB Type-C Ports:3 Origin:Mainland China Plug Type:None Tebe 3 IN 1 USB C Hub Type-c to 4K 120HZ HDMI-Compatible USB3.0 Data 100W PD Type-c Charging Adapter USB-C Docking Station Note:1.Before purchasing, please check whether the Type-C port on your laptop or tablet supports the Alt-DisplayPort function. If it does not support this function, the product's HDMI port cannot be used. 2.To output a resolution of 120Hz, both the display and video source must support a resolution of 4K120Hz. 3.It is backward compatible with common modes such as 2K 120Hz, 1080p 120Hz, and 4K 60Hz.The product is backward compatible with common modes such as 1440p 120Hz, 1080p 120Hz, and 4K 60Hz. However, your input/output devices must be equipped with HDMI 2.1 or DP 1.4 interfaces, and the connecting cables must also be HDMI 2.1 or DP 1.4 versions. Additionally, the display must support and have high refresh rate enabled. Important note How can I output a 4K 120Hz resolution image? 1.Video & cable interface :need HDMI-adapter 2.1 or Displayport 1.4(DSC) version 2.Source devices:GPU must support HDMI-adapter 2.1 or DP 1.4,and the newest driver 3.Display device settings:Check and enable the high refresh rate option in the operating system and display OSD menu.