AMAZING HDMI dongle gives full remote VNC display size and quality for any remote connected monitor and forces the Mac to use the GPU rather than using the CPU. removes all VNC lag and improves performance massively! the DTK Select resolutions up to 3840*2160 ,work fine with big sur beta 3 onwards increases the amount of work space available for development work Accessing Multiple Screen Resolutions on a Macbook Pro Retina Using an HDMI Display Emulator,allowing to run a remote desktop in the spare room as a sever/general workhors without a monitor is something like 640x400, which is too small to even interact with Windows. connected this display emulator and get 3840x1920 resolution now when remoting into the system! without a monitor is something like 640x400, which is too small to even interact with Windows. connected this display emulator and get 3840x1920 resolution now when remoting into the system! no drivers or config needed download any software or configure the unraid server just plug in adjust resolution and connect .Works great as intended!built-in blue Light ,have any questions please contact us 24 hours . Absolute service to your satisfaction！

Malarpon -HDMI 4K -3840*2160@60Hz    

Thereby solving the most suitable working condition

    Can debug multiple resolutions

    Solve the problem of insufficient single monitor

    3840*2160 23/24/25/29/30/60Hz  This recommendation

    2560*1600 59/60Hz 

    2560*1400 59/60Hz

     1920*2160 23/24/25/29/30/59/60Hz

     1920*1200 23/24/25/29/30/59/60Hz 

    1920*1080 23/24/25/29/30/59/60Hz  T

     1680*1050 23/24/50/59/60Hz 

    1600*1200 23/24/25/29/30Hz 

    1600*900 30/60Hz 

    1440*900 23/24/50/59/60Hz 

    1366*768 23/24/50/59/60Hz 

    1360*768 23/24/50/59/60Hz 

    1280*1024 23/24/50/59/60/75Hz 

    1280*800 23/24/50/59/60Hz

     1280*720 23/24/50/59/60Hz 

    1024*768 23/24/50/59/60/75Hz 

    800*600 23/24/50/59/60Hz

     640*480 23/24/50/59/61Hz