Hikvision Upgradable DS-7616NI-E2/8P Embedded Plug Play NVR 16 Channel 8POE Network Video Recorder Up to 8 independent PoE network interfaces for different models Support Hikvision DDNS (Dynamic Domain Name System) Support network detection, including network delay,packet loss, etc Support enabling H.264+ to ensure high video quality with lowered bitrate. Support network detection, including network delay,packet loss, etc