Written 22 Aug 2026. Specs from the maker pages linked below. Prices from those stores. I haven't used these.
HDMI dummy plug for a headless mini PC
A $16 HDMI plug so a closet mini PC thinks a monitor is attached. Skip if you already have a screen in there. EDID is the tiny handshake a PC uses to know a display is plugged in.
Labthrift use is remote desktop and BIOS-via-KVM. Pair with a $100 HDMI+USB KVM if you also need BIOS. The host is in the N100 note.
What to buy
| Dongle | What it is | Street, 22 Aug 2026 | Buy if |
|---|---|---|---|
| DTECH 4K HDMI dummy, 5-pack | fit-Headless. ASIN B09MZBFNM3. Up to 4096×2160 @ 60 Hz. Plug-and-play, no power. Win / Mac / Linux. Sold by DTECH, FBA. | Amazon $15.98. | Headless mini PC or a KVM that wants a stable EDID. One pack covers the closet. |
Skip
Skip miner-branded dongles. Same EDID job, wrong brand for this site. Skip treating this as a GPU or display project.
Sources
Amazon DTECH 5-pack (price, ASIN, 4K60, Win/Mac/Linux). Same listing: amazon.com/dp/B09MZBFNM3.