Review on Tek Republic TUS 400 Sharing Switch by Doug Booth

Product only took about 5 minutes to complete. I connected a powered USB hub with a USB mouse and keyboard to the downstream port, and then connected three Windows PCs to the upstream ports. I was able to successfully switch control of three computers, but recognition problems started soon after. One LED didn't light up, so I removed the product's case, examined the circuitry, and found that there is actually very little solid-state electronics, in fact, the four buttons aren't even of the instant contact type, but rather a noisy, clumsy spring mechanism. This device is the equivalent of connecting all the 5V and ground wires and mechanically plugging and unplugging the white and green data wires into a common connector, as if you were just unplugging and plugging in a USB hub. I think you get what you pay for. I'm currently building my own switch using an Arduino and a relay, but since I took the thing apart I won't be returning it. I would recommend a KVM switch if you may not use this device for a regular printer.