TestFreaks.com posted a review on the Aten Laptop USB KVM Switch CS661

When we think of KVMs we think of a switch of some kind that allows one to control several computers with just one keyboard and mouse, but there are other kinds as well. Aten has sent me over what they are calling a Laptop USB KVM Switch, what is does it allow you to take over another computer via a USB connection, essentially creating a remote desktop session via USB. When active, the main or local computer takes over the controls of the remote computer and you see it's desktop on the lock computer. In the name is 'laptop', but it can be used to connect any PCs together this way. The switch also has a USB port in it to allow sharing of a printer or other device as well, along with a built in GUI and file sharing as well. There's no software to install, everything is self contained, and it even includes a convenient carrying case.

Aten Laptop USB KVM Switch CS661 Review