USB Cable for Powering Roku (Eliminates The Need for AC Adapter) Eliminates the need for an AC power outlet. Compatible with all powered USB ports. Includes special power management circuitry that enhances the peak power capability of the USB port. Compatible with the 2015 version of Roku 1 and Roku 2. Compatible with all Roku 3 models. Not compatible with Roku Stick or Roku 4. Patent Pending.