Advantages:1. The two adapters connected automatically and were easy for that matter. Basically, you just plug in everyone and they take care of the rest.2. The price was great. A quick scan of Revain and you'll see that you could have spent a lot more on powerline adapters. Cons: 1. As others have said, it blocks part of the other outlet so you can't plug a 3-pin plug into the remaining outlet when the powerline adapter is plugged in. - the tooth does not fit. It sort of fixes this by having its own pass-through socket, but it would be nice to be able to use a different one. When it was connected, it broke my wifi. So the power connection was working great, but suddenly no other computer could use the internet/network because my wifi wasn't working. This was my first time using powerline adapters, so maybe I was wrong. I connected one end to an old computer and the other to my router for network connectivity. I'm not sure what my fault would be, but I couldn't find any information online about powerline adapters dropping Wi-Fi signals, so it might just be my router. Due to the above two cons, I returned the product.
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