Mission Power USB Cable for Powering The New Chromecast Compatible with both the old and new Chromecast. CHROMECAST NOT INCLUDED. 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. Ideal length (10 inches) for conveniently connecting Chromecast to the TV's side USB/HDMI ports.