PC Modding Malaysia has posted a KeySonic Intelligent KVM Switch review

Overall, the KeySonic KVM switch is a excellent product that
comes in a small package. It worked like charm and gave me full control
over my PCs. Now I can easily do my work on one PC and run benchmarks on
the other PC without requiring additional keyboards and mice. Now I can
access both PCs without having to swap the monitor cables from one PC to
another! Priced at USD70 / RM270 for the 4 port KVM switch, I would say
it is worth the bucks because not only that I save space on my desk, I
can now do benchmarking and do the write up at the same time!

KeySonic Intelligent KVM Switch Review