3 Pack HDMI Dummy Plug 4K HDR,Virtual Monitor EDID Emulator, Headless Display Adapter,Supports up to 4k@60Hz,1080@120Hz

A+. This little plug is a game changer for anyone running a headless PC setup. Plugged it in and my system immediately recognized a display, no driver issues, no fuss. Runs smoothly at 4K and has made remote access a breeze. Compact, affordable, and does exactly what it promises. Highly recommend to anyone working with servers, remote desktops, or mining rigs!

Does exactly as described. Just a simple dummy plug.

Great for headless computers. The computer thinks a 4k monitor is plugged in. This is hndy for remote control apps such as screen connect or TeamViewer, and some computers with AMD CPUs won't display in these applications without a monitor plugged in.

Lo conectas y listo. Yo los uso para poder conectarme de forma remota por Anydesk a tres equipos con Windows 11 que tengo sin una pantalla.

I pop into remote computers all the time, for both work and home purposes. I'd been cheaping out by simply proping open laptop lids with a thumb drive to keep the screens on - it was workable, but that is far from ideal. Finally decided to do things "the proper way" and bought an 8-pack of dummy plugs. Stuck one in each of my home devices, and I hate to say it, but these dummy plugs brought me more joy than other more expensive play-toys I received in the same order. They're not big, but I'd love to see something even more smaller. They work very well, too! A little blue light opposite the plug end confirms it is working. Installation was literally plug-and-play on W10 and W11 boxes, so there's your compatibility statement - likely compatible with many other OSs, too. Also can confirm, they are compatible when used with a mini DisplayPort to HDMI adapter, for devices without an HDMI port. 11/10 recommended for people who need to remotely access systems, when those remote systems are headless (no display attached).