i think its on the cheapest range in off the shelf category... its quality is not that great. We have had defects in many cases.. Even if you build from scratch it will cost more with new parts (outlets , relays etc). If you have those parts, or find them by other means (i had gutted an existing surge protector when i first prototyped..) that would be cheaper.I just assembled my raspberry pi and installed reef pi and now I'm looking to make the power controller and I was wondering if there are any cheap alternatives to this power strip CLICK