Can I insert a USB drive for use?

USB supports audio and video formats, please look at the document.

Steps to play USB flash drive on Android TV:
1. Open Google Play Store, and search for File” APP in the Store;
2. Download the first app: “File Manager”;
3. Open the app after downloading;
4. “File Manager” APP interface;
5. Grant full permission: (Allow)
6. Give read permission;
7. Select the corresponding USB flash drive/hard disk;
8. Select the corresponding video to play on the USB flash disk.

-Detailed steps of the whole process of downloading APP: Play a USB Drive on Android TV Guide Video