This switch works perfectly. I plug in a PC + Fixed a laptop when needed Xbox360 + A (because I have the Xbox VGA cable) and everything works great. I did not feel a loss of signal and color. I have 3 devices on at the same time and through the switch, there is no conflict between the images coming from several different sources.
I recommend this switch, especially since it is less expensive than the version found on Amazon in 2 VGA ports.
In addition, the delivery went very well. Subject ordered a Sunday night, received on Wednesday / Thursday.