For people who, for example as I have an old monitor of only 1 VGA connector and has nothing else but want to have run its PC and its Xbox 350 over this box perfect for just the two connect and switches back and forth. hardly to no visible loss of image. a problem but there is in this unit. from time to time comes when umschaten half a second a purple picture I think that's a rückkoplung, this will determine the lifespan of the monitor shorten a bit but that's just a guess. I advise everyone to the vinous money has NEN new monitor or TV to leißten to buy this box.