http://www.ebgames.com/ebx/product/238745.asp

Does anyone know if you have to switch something on this unit when you want to switch sources?

Can't really see with the crappy pic, but at that price and from Mad Catz I can pretty much guarantee it is a push-button manual switcher.

You have to manually switch between components with that switcher. There is a switch on the round part.

The reviews on that page seem to confirm that it's cheaply made. Also the first review says that there is a switch and that it stopped working after 6 months.