The Just Add Power 3G+ 4-gang wallplate transmitter fits into a 4-gang construction box and provides multiple video and audio inputs and outputs for the UltraHD over IP line. It also includes a Dolby digital sound processor to distribute Dolby digital 5.1 audio to every zone and transform to stereo audio for 2-channel zones. Build a future-proof 4K infrastructure. Just Add Power UltraHD over IP integrates seamlessly with 1080p infrastructure keep the switch, cabling and driver. Add 4K to current 1080p systems or build a new 4K system.