SparkFun’s latest tutorial shows you how to work with relays. A relay is an electrically operated switch. In this case, they’re using it to switch a 120V AC outlet. The article carries … ...

How Roku Relay works With a typical Wi-Fi extender, you’d plug it into a wall outlet around the midpoint between your wireless router and the devices you’re trying to connect.

In a WWDC developer video, Apple has further explained what protection its iCloud Private Relay will give users, plus how exactly it works to increase privacy.