ZeeVee HDB2840-NA 4 Channel HDbridge Encoder Modulator HDMI 4 Channel High Definition Video Encoder-QAM Modulator with 4 port unencrypted HDMI input and Digital Audio; MPEG2 Built in Fan-Power Supply; Front Panel Config; Closed Captioning and Up to 1080i-p Output, Cables sold separately.

Encodes four 1080p unencrypted HDMI sources directly into private channels that can be received by an unlimited number of HDTV displays with Dolby Digital AC-3 Audio and closed captioning support
Includes a free additional customizable channel with ZvShow to convert a video file into a separate channel to enable you to play commercials, update menu specials, or use as digital signage on any display.
Includes the ZeeVee Emergency Alert System (EAS) that can also connect into compatible national or local alert systems
Delay matched audio output on the first port for synchronizing whole house audio
Can be combined with additional units to support over 100 channels to an unlimited number of displays
5 Year Warranty