These adapters are top of the charts for enabling high speed reliable wired ethernet networking via your electrical wiring circuit, allowing you to reach places wifi signals are low speed, poor quality or congested.
In my own day to day use I can consistently achieve around 350Mbps rock solid and reliable wired ethernet internet connections through them, vastly outperforming any similar wifi speed, maintaining a speed rock steady connection, when wifi is going up and down like a yoyo.
They can provide a much more steady and reliable connection with a cleaner signal than any wifi can get close to, ideal when you need reliable high speed networking requirements such as VOIP, HD Video Conference Calls and ultra high quality 4K+ video streaming.
The only thing they DO require is that each electrical outlet they are plugged into must be on the same electrical ring main. So if you have multiple ring mains in your home you need to check beforehand which sockets are on which ring main. Crossing ring mains will negatively affect achievable speeds.
Comes as a set of 2 MATCHED adapters.