... Support POE Dahua 8 Channel standalone NVR recorder for IP camera systemUp to 4/8/16 channel with 1080p realtime ... Vision, AXIS, Bosch, Brickcom, Canon, CP Plus, Dynacolor, Honeywell, Panasonic, Pelco, Samsung, Sanyo, Sony, Videosec, Vivotech and etc. ONVIF Version ... , UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search(Support IP camera, DVR, NVS etc)Max. User Access20 ...