Icrontic has put up a review on the QVS 2-Port KVM Autoswitch Kit

As far as merely switching back and forth between two systems, this switch works great! One of its strong points is that there is practically zero lag time after going from one system to the other. By lag time, I mean the amount of time it takes before you can use your mouse and keyboard. For the first ten minutes of use, I just practiced switching back and forth between the two systems and rebooting them individually and simultaneously. What is great about this unit is that you can easily use one machine for work, testing, or trouble shooting while using the other for gaming, benchmarking, etc.

Read more