Is there a mini desktop PC that has a fast processor but no hdmi or other graphics output?
Only access web server and ssh.
Intel NUC looks nice but has graphics.
Your best bet is almost certainly off-lease corporate PCs. They will have video but you can ignore it.
If you want literally no video card at all, you probably have to build your own. Or find one that came with an actual powerful GPU and rip it out. Even a raspberry pi has HDMI.
There are so many alternatives to NUCs, it always surprises me that people think Intel NUCs are the only choice. Just lookup 'Mini PC' on Amazon. There's thousands of choices other than NUCs, and cheaper too.
Thanks for the replies, it seems that the closest I can get is a rack mounted server module, which is expensive and over kill.
Or just ignore the graphics in a mini pc.
Your best bet is almost certainly off-lease corporate PCs. They will have video but you can ignore it.
If you want literally no video card at all, you probably have to build your own. Or find one that came with an actual powerful GPU and rip it out. Even a raspberry pi has HDMI.