FUERAN FUERAN-004 4K HDMI Dummy Plug?High Resolution Virtual Monitor Display Emulator, Headless Display Adapter Supports up to 3840x2160@60Hz-1080
Full Size HDMI Dummy Plug - For Headless Setup
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Amazon.com: HDMI Dummy Plug 1080P/QHD Virtual Monitor Display Emulator Compatible with Windows, Mac OS, Linux Support 1920x1080P Multiple Resolutions(1 Pack) : Electronics
Is an HDMI dummy plug necessary to run Mac Mini headless? : r/macmini
HDMI-Compatible Virtual Display Emulator 4K HD DDC EDID Dummy Plug Dongle - Robu.in | Indian Online Store | RC Hobby | Robotics
Amazon.com: BIHAIT 4K HDMI Dummy Plug,High Resolution Virtual Monitor Display Emulator,3840x2160@60Hz Adapter for Ethereum ETH ZEC BTC Mining, Compatible with Windows Mac OSX - 3 PC : Electronics
No HDMI Audio output shown for my TV When I Plug HDMI in! - Fedora Discussion
Software HDMI dummy - Allows custom scaled retina (HiDPI) resolutions on Apple Silicon/Intel Macs, Monterey compatible (more info in the comments) : r/apple