Hikvision DVR Turbo HD DS-7104HGHI-F1 4-ch BNC

Audio Input:1-chVideo Compression:H.264Analog and HD-TVI video input:4-ch BNC interface (1.0Vp-p, 75 ?)Supported camera types:4Support HDTVI input: 720P/25, 720P/30,Support AHD input: 720P/25, 720P/30, CVBSAudio Compression:4G.711uAudio Input Interface:4RCA (2.0 Vp-p, 1 k?)Two-way Audio:1-ch, RCA (2.0 Vp-p, 1 K?) (using audio input)Video/Audio OutputHDMI/VGA Output:1920 × 1080 / 60 Hz,1280 × 1024 / 60 Hz, 1280 × 720 / 60 Hz, 1024 × 768 / 60 HzRecording resolution:Main stream: 720P / WD1 / 4CIF / VGA / CIF ;Sub-stream: CIF  / QVGA / QCIF (real-time) Frame Rate:1/16 fps ~ Real time frame rateVideo Bit Rate:32 Kbps ~ 4 MbpsStream Type:Video/Video&AudioAudio Output:1-ch RCA(Linear, 1k?)Audio Bit Rate:64kbpsDual Stream:SupportPlayback Resolution:720P / VGA / WD1 / 4CIF / CIF / QVGA / QCIFSynchronous Playback:16-chNetwork managementRemote connections:128Network protocols:TCP/IP, PPPoE, DHCP, EZVIZ Cloud P2P, DNS, DDNS, NTP, SADP, SMTP, SNMP, NFS, iSCSI, UPnP, HTTPSHard Disk DriverInterface Type:1 SATA InterfaceCapacity:Up to 6 TB capacity for each diskExternal InterfaceNetwork Interface:1; 10M / 100M self-adaptive Ethernet interfaceUSB Interface:2 USB 2.0 InterfacesGeneralPower Supply:12V DCConsumption:20W(without hard disks)Working Temperature:10 ?C ~ 55 ?C (14 ?F ~ 131 ?F)Working Humidity:10% ~ 90%Dimensions:285 × 210 × 45 mm (11.2 × 8.3 × 1.8 inch)Weight: 1.2 kg / 2.6 lb(without hard disks)