It might seem inconceivable to someone who just started working on their first computer that anyone would actually need a Keyboard/Video/Monitor Switch - let along one with four ports. Aside from the fact that around here we regularly work on at least two computers at once, and sometimes many more, a KVM switch can free up one heck of a lot desk space if you have multiple computers to operate. The big difference which separates the Belkin Omniview from other digital KVM's is that it supports either USB or PS/2 based keyboard and mice. As if that weren't nice enough, the KVM also supports two audio channels. Most digital KVM's do not support this many connections, and inexpensive analog units rarely support more than the basic keyboard/video/mouse features.