... Vertical NVR; Free PSS CMS; Support POE 4/8/16 channels standalone NVR recorder for IP camera system Up to 4/8/16 ... /1000M)Network FunctionHTTP, TCP/IP, IPv4/IPv6, UPNP, RTSP, UDP, SMTP, NTP, DHCP, DNS, IP Filter, PPPOE, DDNS, FTP, Alarm Server, IP Search(Support IP camera ... web interface 4/8/16 channels standalone NVR recorder for IP camera system