Despite the name, the Headless Ghost HDMI Display Emulator isn’t some kind of Halloween prop. It’s a tiny HDMI dongle that mimics a display and fools a computer into thinking it’s connected to one. This is for people who often remotely connect to display-less machines, and who would benefit from being able to do so at full resolution. You see, many PCs automatically lower the output resolution if they don’t detect a display, some even going as far as disabling the graphics card altogether. But if you’re running software that would benefit from having the GPU chugging along, like cryptocurrency mining software, then the Headless Ghost is especially useful. As a matter of fact, if you have a farm of machines built specifically for that purpose, you’ll be happy to know that you won’t be needing a display for each PC, but that an inexpensive £10 (~$16 USD) dongle will do. It can mimic resolutions ranging from 800×600 to 4096×2160.