The TP-Link Archer T3U network adapter is designed to work with computers (desktops, laptops) and not specifically with TV boxes. It is compatible with the following operating systems:

- Windows 11/10/8.1/8/7/XP
- Mac OS X 10.9-10.14

It is not explicitly stated that this adapter is compatible with TV boxes, which generally have their own operating systems and specific requirements. To use a WiFi adapter with a TV box, it is recommended that you check the specific compatibility of the TV box with the adapter in question or consult the TV box manufacturer's documentation.