This is a Pentair Contoller System for Automated Pool/Spa Controls. They come in 4 sizes – 4, 6, 8 and 12, which is an Intellitouch System. The number tells you how many components it will operate. This particular photo is an Intellitouch, which will operate up to 12 items all on their own separate relay and control button: (1) Filter Pump, (2) Cleaner Pump, (3) Booster Pump, (4) Blower, (5) Pool Lights, and (6) Spa Light. And can also add for huge projects with Water Features, Sheer Decent Water Fall, Step Lights, Yard Lights, etc.