DS-7204HGHI-F1 DS-7208HGHI-F1 DS-7216HGHI-F1 Video/Audio input Video compression H.264+/H.264 Analog video input 4-ch 8-ch 16-ch BNC interface (1.0 Vp-p, 75 Ω), supporting coaxitron connection HDTVI input 1080p25, 1080p30, 720p25, 720p30 AHD input 720p25, 720p30 CVBS input Support IP video input 1-ch 2-ch Up to 960p resolution Up to 1080p resolution Audio compression G.711u Audio input/Two-way audio input 1-ch, RCA (2.0 Vp-p, 1 KΩ) Video/Audio output HDMI/VGA output 1-ch, 1920 × 1080/60Hz,1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz Encoding resolution When 1080p Lite mode not enabled: 720p/WD1/4CIF/VGA/CIF When 1080p Lite mode enabled: 1080p lite/720p/WD1/4CIF/VGA/CIF Frame rate Main stream: When 1080p Lite mode not enabled: For 720p stream access: 720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) When 1080p Lite mode enabled: 1080p lite/720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) Sub-stream: 2CIF@6fps; CIF/QVGA/QCIF@ 25fps (P)/30fps (N) Sub-stream: 4CIF/2CIF@6fps; CIF/QVGA/QCIF@25fps (P)/30fps (N) Video bit rate 32 Kbps to 4 Mbps Audio output 1-ch, RCA (Linear, 1 KΩ) Audio bit rate 64 Kbps Dual stream Support Stream type Video, Video & Audio Synchronous playback 4-ch 8-ch 16-ch Network management Remote connections 32 128 Network protocols TCP/IP, PPPoE, DHCP, Hik Cloud P2P, DNS, DDNS, NTP, SADP, SMTP, NFS, iSCSI, UPnP™, HTTPS Hard disk SATA 1 SATA interface Capacity Up to 6 TB capacity for each disk External interface Network interface 1, RJ45 10M/100M self-adaptive Ethernet interface USB interface Rear panel: 2 × USB 2.0 General Power supply 12 VDC Consumption (without HDD) ≤ 8 W ≤ 12 W ≤ 20 W Working temperature -10 ºC to +55 ºC (14 ºF to 131 ºF) Working humidity 10% to 90% Dimensions (W × D × H) 260 × 222 × 45 mm (10.2 × 8.7 × 1.8 inch)