Connect device with USB C (thunderbolt 3/4) to two external monitors with 4K HDMI output.You can enjoy movies,games with your families on external ultra HD big screen.Windows OS supports both SST and MST mode.For Mac OS,it ONLY support SST, two external displays Can’t be different, due to Mac OS limitation.

Plug & Play no addtional driver/software required. Make sure your laptop or PC supports Thunderbolt 3/4 or display output mode（DP ALT mode）.OTHERWISE it is NOT COMPATIBLE.(not all USB-C ports/systems support Alternate Mode functionality)

This usb c to hdmi adapter resolution up to 4K(3840X2160@60HZ), dual monitor with HDMI at 3840x2160@30Hz.If you want to get 4K, please ensure your host device support 4k resolution and your hdmi cable is HDMI2.0 or above.

How to set Dual display:For Windows:Press Windows key+P combination command-->Choose Duplicate or Extend.For Mac:Top left corner Apple icon-->System Preferences-->Displays-->Mirror or Extend Displays, both HDMI monitor are identical but but can be different with laptop screen.

24 Months Warranty:We offer 24 months defective product refund/replacement ensures long-time satisfaction of your purchase; Friendly and easy-to-reach customer service to solve your problems timely(such as: how to setting, how to use it...)