The Capcom IO board isn't actually USB. It's JVS. About the only thing the two standards have in common is the connector (JVS deliberately used the USB connectors/cables because they were "readily available").
There are some people who make JVS PC interfaces. They'll give you real USB or maybe PS/2 which you could then use via a KVM, if you want to. Unfortunately, every JVS IO board (especially from different vendors) has a different register map, so you need to make sure you find one that supports the board you have. The Capcom one is one of the most commonly supported, at least.