As I said, those are just splitters, the SWM power inserter is the device I pictured. There is no combination splitter/PI. When they refer to the "SWM", most people are talking about the PI. You can't run an SWM system without it, whereas with only one receiver you don't need a splitter. As bluemoon737 posted, the actual SWM electronics are either in the dish, or in a separate multiswitch (8 or 16 channel).