This tiny device is designed to block data signals that tracking algorithms and cookies look for while using HDMI-connected devices like game consoles and DVD or Blu-ray players. It does not have the physical pin required to send data signals to your TV, making it impossible for tracking cookies and algorithms to scrape data from your games, movies, and shows.
It also helps block HDMI-CEC signals that allow multiple devices to be controlled with a single remote, which can cause issues with more complicated home theater setups.
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And with gold-plated connections, you'll still get crisp video and audio output, so you can continue to enjoy your favorite media without having to worry about getting bombarded with relentless advertisements and suggestions for shows and movies you won't ever watch.