Audio Input|1-chVideo Compression|H.265 Pro+/H.265 Pro/H.265/H.264+/H.264Analog and HD-TVI video input|32-ch,BNC interface (1.0Vp-p, 75 Ω)connectionSupported camera types|Support HDTVI input1080p25, 1080p30, 720p25, 720p30 Support AHD input: 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:704×576,NTSC:704×480HDMI/VGA Output|HDMI: 1-ch,4K(3840×2160)/30Hz,2K(2560×1440)/60Hz, 1920×1080/60Hz, 1280×1024/60Hz,1280×720/60Hz,1024 ×768/60Hz VGA:1-ch,2K(2560×1440)/60Hz,1920×1080/60Hz,1280×1024/60Hz,1280×720/60Hz,1024×768/60HzRecording resolution|1080p/720p/VGA/WD1/4CIF/CIFFrame Rate|Main stream: For 1080p stream access: 1080p lite/720p lite/WD1/4CIF/VGA@15fps; CIF@25fps (P)/30fps (N) For 720p stream access: 720p/WD1/4CIF/VGA@15fps; CIF@25fps (P)/30fps (N) For standard definition stream access: WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) Sub-stream: For 1080p and 720p stream access: CIF/QVGA@15fps For standard definition stream access: CIF/QVGA@25fps (P)/30fps (N)Video Bit Rate|32 Kbps ~ 4 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 InterfacePower Supply|12 VDCConsumption|≤ 18 WWorking 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|≤ 2.2 kg (4.9 lb)