Help getting started with Roku devices, including setup, connecting your device to your TV, linking a Roku device to your account at my.roku.com/link, adding channels, subscribing to services, and more.
The Ultra has a USB port, but the "Ultra LT" does not. I didn't even know there was such a beast as the "Ultra LT" until just now. I believe the Ultra is the only device with a USB port so is the only device that will allow you to connect a flash drive or hard drive. Keep in mind that the USB port may not supply enough power for all hard drives that don't have their own power supply.