The ViewZ VZ-4HDVR-4 4 Channel HD-SDI DVR + 4 Terabyte Hard Drive, H.264, remote view app. H.264 video compression records. HD resolution recording at up to 1280x720 / 1920x1080. 1080p HDMI output & simultaneous VGA output. Remote Setup and Remote Upgrade. Easy CMS Software for Windows computers. Email Notificatoins (Image or AVI file attachment). NTP (Network Time Protocol). Synchronized audio for court evidence. Remote Search for CMS or Cell Phone.