Hikvision 4-Channel Turbo HD DVR

Video/Audio Input Audio Input: | 1-ch Video Compression: | H.264,H.264 Analog and HD-TVI video input: | 4-ch BNC interface (1.0Vp-p, 75 Ω) Supported camera types: | Support HDTVI input: 1080P/25Hz, 1080P/30Hz, 720P/25Hz, 720P/30Hz, Support AHD input: 720P/25Hz, 720P/30Hz, support CVBS input Video Input Interface: | BNC (1.0 Vp-p, 75Ω) Audio Compression: | G.711u Audio Input Interface: | RCA (2.0 Vp-p, 1 kΩ) Two-way Audio: | 1-ch, RCA (2.0 Vp-p, 1 KΩ) (using audio input) Video/Audio Output HDMI/VGA Output: | 1920 × 1080 / 60 Hz,1280 × 1024 / 60 Hz, 1280 × 720 / 60 Hz, 1024 × 768 / 60 Hz Recording resolution: | When 1080p Lite mode not enabled: 720p/WD1/4CIF/VGA/CIF; When 1080p Lite mode enabled: 1080p lite/720p/WD1/4CIF/VGA/CIF Frame Rate: | Main stream: When 1080p Lite mode not enabled: For 720p stream access: 720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) When 1080p Lite mode enabled: 1080p lite/720p/WD1/4CIF/VGA/CIF@25fps (P)/30fps (N) Video Bit Rate: | 32 Kbps ~ 4 Mbps Stream Type: | Video/Video&Audio Audio Output: | 1-ch RCA(Linear, 1kΩ) Audio Bit Rate: | 64kbps Dual Stream: | Support Playback Resolution: | 1080p lite/720p/WD1/4CIF/VGA/CIF Synchronous Playback: | 4-ch Network management Remote connections: | 32 Network protocols: | TCP/IP, PPPoE, DHCP, Hik Cloud P2P, DNS, DDNS, NTP, SADP, SMTP, NFS, iSCSI, UPnP™, HTTPS Hard Disk Driver Interface Type: | 1 SATA Interface Capacity: | Up to 6 TB capacity for each disk External Interface Network Interface: | 1; 10M / 100M self-adaptive Ethernet interface USB Interface: | 2 USB 2.0 Interfaces General Power Supply: | 12V DC Consumption: | ≤ 8W Working Temperature: | -10 ºC ~ 55 ºC (14 ºF ~ 131 ºF) Working Humidity: | 10% ~ 90% Dimensions: | 200 × 200 × 45mm (7.9 × 7.9 × 1.8 inch) Weight: | ≤ 0.8 kg / 1.8 lb(without hard disks)