Audio Input|1-chVideo Compression|H.265 Pro+/H.265 Pro/H.265/H.264+/H.264Analog and HD-TVI video input|BNC interface (1.0Vp-p, 75 Ω)connection;Supported 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)HDMI/VGA Output|1920 × 1080 / 60 Hz,1280 × 1024 / 60 Hz, 1280 × 720 / 60 Hz, 1024 × 768 / 60 HzRecording 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|64Network protocols|TCP/IP, PPPoE, DHCP, Hik-connect Cloud P2P,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 self-adaptive Ethernet interfaceUSB Interface|2 USB 2.0 InterfacesPower Supply|12 VDCWorking Temperature|-10 oC to +55 oC (14 oF to 131 oF)Working Humidity|10% to 90%Dimensions|380 × 320 × 48 mm (10.2 × 8.7 × 1.8 inch)Weight|≤ 2.0 kg (4.4 lb)