Video Input and Transmission  Self-adaptive HDTVI/HDCVI/AHD/CVBS signal input  Up to 2-ch 4 MP IP cameras input  Long distance transmission over UTP and coaxial cable: max. 800m for 1080p and 1200m for 720p HDTVI signal Compression and Recording  H.265+/H.265/H.264+/H.264 encoding for the main stream, and H.265/H.264 for the sub-stream of analog cameras  Connectable to H.265+/H.265/H.264+/H.264 IP cameras  H.265+ can be enabled to improve encoding efficiency and reduce data storage costs  Up to 3 MP resolution for recording  Supports real-time 1080p lite and when enabled, the image effect is similar with 1080p Video Output  Simultaneous HDMI/VGA output  HDMI output at up to 4K (3840 × 2160) resolution for DS-7216HQHI-K1  Separate CVBS output Storage and Playback  1 SATA interface (up to 6 TB capacity per HDD)  4/8/16-ch synchronous playback  Smart search for efficient playback  Supports the 3 rd party cloud storage (Dropbox/Google Drive/Microsoft OneDrive) Smart Function  Supports multiple VCA (Video Content Analytics) events for both analog and smart IP cameras  DS-7204/7208HQHI-K1 support 2-ch line crossing detection and intrusion detection; DS-7216HQHI-K1 supports 2-ch line crossing detection and intrusion detection, and 1-ch sudden scene change detection  VQD (Video Quality Diagnostics)  Supports PTZ control via Omnicast VMS of Genetec protocol Network & Ethernet Access  Hik-Connect & DDNS (Dynamic Domain Name System) for easy network management  1 RJ45 10M/100M Ethernet network interface for DS-7204/7208HQHI-K1, and 1 RJ45 10M/100M/1000M Ethernet network interface for DS-7216HQHI-K1  Output bandwidth limit configurable