DTech HDMI Dummy Plug 4K Display Emulator Compatible with Windows Mac OSX Linux (fit-Headless, 3 Pack)

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

I host a couple servers that are sitting in a utility closet. I mostly RDP into them, and I was annoyed that the RDP session would mimick the resolution of the cheap, old monitor I had hooked into the servers in that closet, and that they had to have a display connected into them to get any kind of visual out, even through RDP. I bought these so I could have the full 4k that my home office computer uses, and without having to have a physical display connected into them all the time. and for that it works great. If I put the RDP in full screen, it looks and behaves like my monitor is connected directly to the target machine. I understand a lot of people use these for Crypto Mining, and to those people I wish your profit margin tanks and you lose everything you've invested. You deserve it. Sincerely, everyone who actually cares about computers and can't afford parts anymore.

Works exactly as expected, no signal light, which is perfect

To an extent this product works. I get a display when using anydesk and for what it does it's great running a headless pc. My main problem is the latency and lag when I had that dummy hdmi during my remote sessions into my headless system. Running at the full 4k was barely usable, but turning it to 1080p made it better but still had a significant lag/latency. But it works decently great, just something you have keep in mind.

Super fast shipping - came the next day. Plugs into computer and I easily get full resolution on my remote desktop. A+ :-)

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.

Setting up some netbooks to act as music players in restaurants and need to leave them with the lids closed. With recent model laptops lid closed has disabled the GPU making for problems with remote control software. (not working at all, working with errors, etc.) Adding a ghost adapter forces the GPU to remain active solving the remote access problem. Since these will be used for music playback, I was going to buy USB audio adapters and assign the music app to that, with the default left to the laptop speakers for Windows system sounds and other apps. But with the ghost HDMI adapter, I can set that as the default, sending all non-music audio to it (effectively muting the laptop) and then just assign the music app audio to the headphone jack. This way there's no worry that a Windows notification will send a loud DINNG throughout the restaurant lol :) So, decent price, they work well so far, I'm happy.

I need to remotely access my laptop that I'm using as a plex server. I want the lid for the laptop closed while running, but when it's closed i get a blank screen when i remote in via VNC. This dongle worked to trick the laptop into thinking there is an external monitor connected, thus fixing my blank screen issue. This is the easiest and cheapest fix and it just worked. I love when stuff just works

After setting up my first mini PC with an Intel iGPU as a headless server, I ran into what is apparently a common issue: the PC would not boot into the GUI without a connected monitor. In addition to that, the Intel video driver would not load properly, meaning I couldn't use the GPU for Plex hardware transcoding. And finally, I couldn't RDP/VNC into the machine. It seems like this little dummy plug fixed all of my issues. Linux recognized it as a connected monitor, and now the machine boots properly, the Intel video driver loads as expected and I can remotely connect to the PC. An interesting solution to an interesting problem.

Smart, well made HDMI plugs that produce an EDID of several formats upto and including standard 4K. Ideal for HDMI splitters and remote access to a computer (such as a Raspberry Pi) where VNC or some other remote access client produces a desktop of a pre-determined, low resolution. These were very good value having been purchased in a pack of 3 for £7. Note: You can edit the config.txt file on a Raspberry Pi to force the HDMI output resolution but if that's not convenient, these and a micro HDMI to HDMI cable / adapter are the way to go.

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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.

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!