<a href="http:&#x2F;&#x2F;y-salnikov.github.io&#x2F;vcaptfx2&#x2F;" rel="nofollow">http:&#x2F;&#x2F;y-salnikov.github.io&#x2F;vcaptfx2&#x2F;</a> is cheap<p>I have a bunch of $200-300 devices (from blackmagic for hdmi, or raritan for vga) to do this.  It&#x27;s doing 48 ports, with good OS&#x2F;security, for $10-50&#x2F;machine, which is hard.