Video compression H.265 Pro+/H.265 Pro/H.265/H.264+/H.264 Encoding resolution When 1080p Lite mode not enabled: 4 MP lite/3 MP/1080p/1080p lite/720p/WD1/4CIF/VGA/CIF When 1080p Lite mode enabled: 4 MP lite/3 MP/1080p lite/720p/720p lite/WD1/4CIF/VGA/CIF Frame rate Main stream: When 1080p Lite mode not enabled: For 4 MP stream access: 4 MP lite@15fps; 1080p lite/720p/WD1/4CIF/VGA/CIF @25fps (P)/30fps (N) For 3 MP stream access: 3 MP/1080p/720p/WD1/4CIF/VGA/CIF@15fps For 1080p stream access: 1080p/720p@15fps; WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) For 720p stream access: 720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) When 1080p Lite mode enabled: For 4 MP stream access: 4 MP lite@15fps; 1080p lite/720p lite/WD1/4CIF/VGA /CIF@25fps (P)/30fps (N) For 3 MP stream access: 3 MP/1080p lite/720p lite/WD1/4CIF/VGA/CIF@15fps For 1080p stream access: 1080p lite/720p lite/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) For 720p stream access: 720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) Sub-stream: WD1/4CIF@12fps; CIF@25fps (P)/30fps (N) Video bit rate 32 Kbps to 6 Mbps Dual stream Support Stream type Video, Video & Audio Audio compression G.711u Audio bit rate 64 Kbps Video and Audio IP video input 16-ch (up to 40-ch) 16-ch (up to 48-ch) Up to 6 MP resolution Support H.265+/H.265/H.264+/H.264 IP cameras Analog video input 24-ch 32-ch BNC interface (1.0 Vp-p, 75 Ω), supporting coaxitron connection HDTVI input 4 MP, 3 MP, 1080p25, 1080p30, 720p25, 720p30, 720p50, 720p60 *: The 3 MP signal input is only available for channel 1/2/3/4. AHD input 4 MP, 1080p25, 1080p30, 720p25, 720p30 HDCVI input 1080p25, 1080p30, 720p25, 720p30 CVBS input PAL/NTSC CVBS output 1-ch, BNC (1.0 Vp-p, 75 Ω), resolution: PAL: 704 × 576, NTSC: 704 × 480 HDMI1/VGA output 1-ch, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz HDMI2 output 1-ch, 4K (3840 × 2160)/30Hz, 2K (2560 × 1440)/60Hz, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz Audio input 16-ch, RCA (2.0 Vp-p, 1 KΩ) Audio output 2-ch, RCA (Linear, 1 KΩ) Two-way audio 1-ch, RCA (2.0 Vp-p, 1 KΩ) (independent) Synchronous playback 16-ch Network Remote connections 128 Network protocols TCP/IP, PPPoE, DHCP, Hik-Connect, DNS, DDNS, NTP, SADP, NFS, iSCSI, UPnP™, HTTPS, ONVIF, SNMP Network interface 2, RJ45 10M/100M/1000M self-adaptive Ethernet interface Auxiliary interface SATA 8 SATA interfaces eSATA Support Capacity Up to 10 TB capacity for each disk Serial interface RS-232, RS-485 (full-duplex), Keyboard Alarm in/out 16/8 USB interface Front panel: 2 × USB 2.0 Rear panel: 1 × USB 3.0 General Power supply 100 to 240 VAC Consumption (without HDD) ≤ 45 W Working temperature -10 °C to +55 °C (+14 °F to +131 °F) Working humidity 10% to 90% Dimensions (W × D × H) 440 × 470 × 90 mm (17.3 × 18.5 × 3.5 inch) Weights (without HDD) ≤ 10 kg (22.0 lb)