1 channel video encoder. H.264/MPEG4/MPEG2/MJPEG encoding standards supported. Support encoding video at up to 4CIF resolution. Connectable with network HDD in NAS, IPSAN mode. Support multiple network protocols, including IPv4/v6, HTTP, HTTPS, QoS layer3 DiffServ, FTP, SMTP, Bonjour, UPnP, SNMPv1/v2c/v3, OnVIF, PSIA, SOCKSv4/v5, etc... Multiple PTZ protocols. Ethernet 10/100M.