HIKVISION NVR 4CH Security Camera  (4 TB, 4 Channel)

Two-way audio input: 1-ch, RCA (2.0 Vp-p, 1k?) IP video input: 4-ch Network Remote connection: 128 Incoming bandwidth: 40Mbps Outgoing bandwidth: 80Mbps Video/Audio Output HDMI/VGA output: 1-ch, resolution: 1920 × 1080P /60Hz, 1600 × 1200 /60Hz, 1280 × 1024 /60Hz, 1280 × 720 /60Hz, 1024 × 768 /60Hz Recording Resolution: 6MP/5MP/4MP/3MP/1080P/UXGA/720P/VGA/4CIF/DCIF/2CIF/CIF/QCIF Frame Rate: Main stream: 50 fps (P) / 60 fps (N) Sub-stream: 50 fps (P) / 60 fps (N) Audio Output: 1-ch, RCA (Linear, 1k?) Synchronous Playback: 4-ch Decoding Capability: 4-ch@1080P Live view / Playback: 6MP/5MP/3MP/1080P/UXGA/720P/VGA/4CIF/DCIF/2CIF/CIF/QCIF Hard Disk SATA: 1 SATA interface for 1 HDD Capacity: Up to 4TB for each disk External Interface Network Interface: 1RJ-45 10/100/1000Mbps self-adaptive Ethernet interface USB Interface: 1 × USB 2.0 and 1 × USB 3.0 Alarm In: 4-ch(optional) Alarm Out: 1-ch(optional) POE Supported Standard: AF and AT Interface: 4 independent 100 Mbps PoE network interfaces Max. Power: 50W General Power Supply: 48V DC Consumption(without hard disk and POE): ? 10W Working Temperature: -10 oC ~ +55 oC (+14 oF~ + 131 oF) Working Humidity: 10 % ~ 90 % Chassis: 1U chassis Dimensions: 315 × 230 × 45mm (12.4 ×9.1 × 1.8 inch) Weight(without HDD): ? 1 Kg (2.2 lb) H