DTech 4K HDMI Dummy Plug Display Emulator Headless Ghost Adapter Compatible with Windows Mac OSX Linux Support 4kx2k 2160P 1080p for Computer Desktop (fit-Headless, 1 Pack)

Tested and found it gives 4K @ 60Hz, as advertised! Metal body and of good quality. Recommended.

Worked.

The DTech 4K HDMI Dummy Plug works exactly as intended and has been a seamless solution for running my system headless. The moment I plugged it in, it detected a display instantly and allowed me to stream/remote into my PC without any resolution issues. It delivers full 4K output smoothly, no flickering, no handshake problems, and maintains consistent performance every time I boot the system. For remote desktop work, GPU acceleration, and server setups, this adapter is a game changer — my system now behaves like a monitor is physically connected, giving me high resolution and better performance vs running headless. Completely plug-and-play, no drivers, no configuration, just connect and done. Only Con: It warms up a little during long use, but nothing concerning — just normal and doesn’t affect performance at all. Overall, if you need a dependable HDMI display emulator that supports 4K and runs flawlessly, this is hands down one of the best picks. Completely worth it.

Linux system does not load display driver if no monitor is connected to the system, so there will not be any graphical interface available. It makes system believe there is a monitor attached to it. It is useful for headless systems/ servers.

I bought this HDMI dummy plug for my headless setup, and it works flawlessly. My PC immediately detected it as a 4K display, and now I can remote into my system with full resolution and no lag. No drivers needed — just plug it in and it’s recognized instantly. I’ve tested it on both Windows and Linux, and it works great on both. The build quality feels solid, and it hasn’t overheated even after days of continuous use. If you need to run a computer without a monitor but still want GPU acceleration or proper display scaling for remote desktop or mining rigs — this little adapter is a must-have. Great price, fast shipping, and it just does exactly what it claims to do. Highly recommended!

Perfectly working thanks.

"I purchased this 4K HDMI dummy dongle to edit 4K video files on my PC, even though my main monitor is only Full HD. However, the dongle does not show 4K resolution in Duplicate Display mode. When my PC’s main screen is Full HD, the duplicate screen also stays at Full HD and cannot be changed to 4K. It only works in Extended Display mode at 4K. Additionally, the product quality is poor—the outer casing/cap came off

Do it work A bit costly But overall i got what i needed

Total lifesaver for my headless setup. I just plugged it in and it worked immediately—no more resolution headaches or connectivity issues. It’s a simple, set-it-and-forget-it kind of gadget that does exactly what it's supposed to. Super happy with how it handled the display detection.

It's cheap and it works. Not excellent quality, but adequate.

I run a home web server with no monitor, and access it via VNC. When restarting, I'd have to plug it into a monitor or it would default to super low resolution and run at a snail pace. This magnificent little liar, however, has the computer convinced there a high resolution monitor attached to it, so VNC works like normal, delivering a high resolution screen at full speed. Easily worth the money.

Using this on my windows based home server. Needed a dummy plug for the HDMI output to simulate the monitor signal so the remote desktop software I use would work correctly. This has been doing its job wonderfully for almost 18 months now. Absolutely worth the cost as it completely eliminated my remote connectivity issues.

I don't know why the packaging had to be so much, but it works just like it should. I noticed that it was a bit hard to plug in though. Once all was said and done, it worked fine after I disabled the dummy audio device it created.