The ARN-N9436E Network Video Recorder (NVR) Support 36ch full 4k video real-time access, H265/H.264 stream, embedded Linux operating system, video playback, remote monitoring and backup, preview and playback with 12 times electronic amplification. Standard ONVIF, RTSP, GB28181 protocol. Support DDNS, EMAIL, UPNP, NTP, Web, mobile monitoring, PC client, CMS software. TUTK P2P. Channel grouping, preview cycle. NVR smart analysis (Target count, Item detection, Area detection, Virtual cordon, Scene transformation). 16ch 1080p video synchronous playback and multi-channel synchronous playback