The 3G+AVPro Rackmount 3-in-1 transmitter distributes UltraHD and 4K video over a single Cat5e cable, along with the sound processor. Distribute Dolby Pro Logic II audio to pass multichannel audio to multichannel zones and stereo audio to 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.