Audio Input|1-chVideo Compression|H.265 Pro+/H.265 Pro/H.265/H.264+/H.264Analog and HD-TVI video input|16-ch,BNC interface (1.0Vp-p, 75 Ω)connectionSupported camera types|Support HDTVI input4 MP, 3 MP, 1080p30, 1080p25, 720p60, 720p50, 720p30, 720p25 Note: The 3 MP signal input is only available for channel 1/2 of DS-7208HQHI-K2, and for channel 1/2/3/4 of DS-7216HQHI-K2. Support AHD input: 4 MP, 1080p25, 1080p30, 720p25, 720p30 Support CVI input: 1080p25, 1080p30, 720p25, 720p30 Support CVBS inputVideo Input Interface|BNC (1.0 Vp-p, 75Ω)Audio Compression|G.711uAudio Input Interface|RCA (2.0 Vp-p, 1 kΩ)CVBS Output|1-ch,BNC(1.0Vp-p,75Ω),resolution:PAL:704x576,NTSC:704x480HDMI/VGA Output|VGA: 1-ch, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz HDMI: 1-ch, 4K (3840 × 2160)/30Hz, 2K (2560 × 1440)/60Hz, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60HzRecording 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/CIFFrame 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/VGA/WD1/4CIF/CIF@15fps For 1080p stream access: 1080p@15fps; 720p/VGA/WD1/4CIF/CIF@25fps (P)/30fps (N) For 720p stream access: 720p/VGA/WD1/4CIF/CIF@25fps (P)/30fps (N) When 1080p Lite mode enabled: 4 MP lite/3 MP@15fps; 1080p lite/720p lite/VGA/WD1/4CIF/CIF@25fps (P)/30fps (N) Sub-stream: WD1/4CIF@12fps; CIF@25fps (P)/30fps (N)Video Bit Rate|32 Kbps-6 MbpsStream Type|Video/Video&AudioTwo-way Audio|1-ch, RCA (2.0 Vp-p, 1 kΩ) (using the audio input)Audio Output|1-ch RCA(Linear, 1kΩ)Audio Bit Rate|64kbpsDual Stream|SupportSynchronous Playback|16-chRemote connections|128Network protocols|TCP/IP, PPPoE, DHCP, Hik-Connect, DNS, DDNS, NTP, SADP, NFS, iSCSI, UPnP?, HTTPS, ONVIFInterface Type|2 SATA InterfacesCapacity|Up to 10 TB capacity for each diskNetwork Interface|1; 10M / 100M / 1000M self-adaptive Ethernet interfaceUSB Interface|1 USB 2.0 Interface & 1 USB 3.0 InterfaceSerial Interface|1; standard RS-485 serial interface, half-duplexPower Supply|12 VDCConsumption|≤ 25W(without hard disks)Working Temperature|-10 oC to +55 oC (14 oF to 131 oF)Working Humidity|10% to 90%Dimensions|380 × 320 × 48 mm (15.0 × 12.6 × 1.9 inch)Weight|≤ 2 kg (4.4 lb)