The Sanus 9-in TV media in-wall box with power supply kit is ideal for concealing and organizing media devices and power in wall to create a sleek, finished look. The in-wall box sits flush behind any wall mounted TV & allows you to store streaming devices like Apple TV, Roku, Amazon Fire TV, network switches and more. Cable knockouts help with organization and power knockouts allow you to install the included power supply kit to bring power your TV and other mounted devices in one location. Constructed of Wi-Fi transparent material for un-interrupted connections. Complete solution - Includes box, trim ring, cover, hook and loop strap, extra mounting plate, junction box and outlet, instructions and cut-out template.