【USB C to Dual HDMI Adapter】USB C HDMI Splitter being able to connect laptops or macbook with Type-C (Thunderbolt 3/4) ports connect two external monitors with HDMI ports, suitable for a variety of applications such as office, meeting presentations, and entertainment games. Due to the limitation of Mac OS system, it only supports mirror mode and cannot extend two different screens; Windows OS supports SST and MST modes, which can support both extended and mirrored display modes 【Please Check Compatibility】This Splitter requires that your laptop's USB C port supports the DP Alt Mode feature, or a laptop with Thunderbolt 3/4/5 ports. For example, the following laptop series: H-P's Laptops-EliteBook 700/800, Omen, Elite Dragonfly, Elitebook Ultra series; D-e-ll's Laptops-XPS, Latitude, Precision, Pro series; L-eno-vo's Laptops-ThinkPad, YOGA, ThinkBook, X1 series; A-c-er's Laptops-Swift, Concept D, Neo 2023+ series; A-su-s's Laptops-ROG, ProArt series. For laptop specific models or compatible models of other brands, please check the second main image and the second image of Product Description to confirm 【Mirror & Extended Dispaly】USB C to Dual HDMI adapter for 2 monitors. Expand two USB C (Thunderbolt 3/4) ports into two HDMI 2.0 ports, and for Windows OS, set up both displays for extended or mirrored display (A/A/A, A/B/C and A/B/B display modes). For Mac OS, the two monitors can only be set to mirror mode (A/A/A and A/B/B display modes). Note: Extended display requires your computer to support WIN series operating system and the graphics card to support MST as well 【High Definition Visual Effects】This USB C to 2 HDMI Splitter supports resolutions up to 4K@60Hz in both extended and mirrored modes. Important: The video output will be 4K60Hz only if all your devices support 4K60Hz resolution, please make sure to use HDMI 2.0 or better cables. It is not recommended to connect any other intermediate devices between the computer and the adapter, as there may be compatibility issues that prevent the extended mode from being implemented 【Easy to Operate】Type C to Dual HDMI Adapter Converter offers an easy setup by natively working on device that supports DP Alt Mode over USB Type-C, plug and play, no driver required, no external power supply needed. If there is no sound during use, change the "Default Audio Output Device" setting in System Preferences to provide sound. Note: Please make sure that the type-c port on your device supports video output or DP Alt mode (See the second image of the Product Description for details) 【Create a tidy desktop】Included in the package is a 3.3ft USB C to USB C cable, which allows you to hide the USB C to hdmi adapter or place it under your desk for a neat and clean desktop.The Type C cable and adapter are separate, so you can choose a Type C cable that meets the length requirements for your needs, so that you can change the scenario of your use as you need (it is recommended that the input end cable length does not exceed 5Ft) 【Select Display Mode】Windows: Click "Windows+P" shortcut key and select "Mirror" or "Extension". macOS: Top left corner Apple icon --> System Preferences-->Display-->Mirror or Extend Display, both HDMI monitors are the same but may be different from the laptop screen. If you encounter any issues during use or are unsure whether your computer is compatible, please contact us with your computer's brand and model. Our professional staff will assist you with the inquiry. 1