
I've tried many different "4K" headless adapters and almost all of them have been junk. IE only plays 4K on some devices. (In my case, none of the ones I've tried before work at 4K on my Macs, they usually hit 1080p at best). This one worked well at 3840 x 2160 and even allowed me to up the resolution to 4096 x 2160. Note. This device has 3840x2160. @ 30Hz for me (but that's enough for VNC/remote connection)

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