These devices were simple boxes with a few VGA ports, a few PS/2 ports ... and it’s only USB 1.x, anyway. For a USB 2.0 KVM, there are a few more professional options. The OnSemi NCN9252 ...
In the early 1990’s you could get a 4-port KVM which was little more than an AV-style switch. The transition of keyboards to USB brought with it a big upgrade to the KVM hardware. In 2000 ...
Unlike many basic KVM switches ... The switch has a RJ-45 port in front for cascading switches and remote users, a sound port, VGA port, and two USB ports for speakers, monitor, keyboard, and ...