IOGear GUB201 1-Port / 2-Uplink USB Switch

IOGEAR's premium USB 2.0 Peripheral Sharing Switch enables two PCs and/ or Macs to share one USB device or group of USB devices through a USB Hub on one-at-a-time base. The peripheral can be assigned to a computer either manually or with hot keys (plug-n-play). Unique advanced management is available through a Windows-based application (included) that can limit or extend the sharing capabilities between one, two, three or four computers.

Does what it's supposed to, no hassles.

I bought this to share a keyboard and mouse between 2 computers (a Mac and a Dell)that each have their own monitors, so I didn't need a full KVM switch. After a quick 3 minute installation, this does the trick. Bus powered, so no external power supply and there is no need to install any software for it.