HDMI 2.0, rx460, GTX1050 or above is required for 4K.(support stand-alone graphics card computer only, not support integrated graphics PC) Prerequisite: only support the resolutions that graphics card support, HDMI dummy dongle CAN’T emulate a higher pixel that laptop don’t support.Windows system: 4K@60Hz, 4096 x 2160, 3840x2160, 2880x1800, 2560x1600, 2560x1440, 2048x1536, 1920x1440, 1920x1200, 1920x1080, 1600x1024, 1440x900, 1366x768, etc.MAC system: Max 4K, only support the resolution that MAC display If GPU is often disabled until a display is attached resulting in poor performance and a limited working resolution for remote desktop, compact headless ghost HDMI adapter is a life saver for adding a virtual monitor to computer. Once it’s attached, discrete graphics card PC will have GPU enabled to start various of tasks.Make Things More Easier: single dummy plug HDMI emulator help you not have to connect a real monitor at all, and still get a virtual screen with its own EDID when using remote management software such as VNC. If your main workstation is a 4K screen (TV, 27” iMac,etc), simple 4k HDMI dummy plug 3 pack gives you several monitor resolutions to choose from and prevents the system from defaulting to the lowest resolution when rebooting the system.So you can have remote desktop accessed to a headless MAC mini server, closed-lid laptop, Intel NUC, Compulab headless fit-PC at high resolution and frame rate, don’t have to suffer the annoying issue of the small screen sharing. Fit-headless HDMI display emulator 1080p simplifies streaming game and multimedia from a headless gaming PC to a living room with high refresh rate and HDMI audio; enables your mining rig boots normally; saves the need to connect a display to PC when used with VR headset. HDMI Male Interface HDMI faker for Windows 11 10 8.1 8 7 XP, MAC OS, Linux,etc. What’s Included: Gold Plated HDMI Monitor Emulator 3 Set