Full Description: Video/Audio Input Video Compression: | H.264 Analog and HD-TVI video input: | 4-ch Supported camera types: | 720P25, 720P30, 720P50, 720P60, 1080P25, 1080P30, CVBS IP Video Input: | 1-ch Up to 2MP resolution Video Input Interface: | BNC (1.0 Vp-p, 75?) Audio Compression: | G.711u Two-way Audio: | 1-ch RCA(2.0Vp-p, 1k?) Video/Audio Output HDMI/VGA Output: | 1920 ﾗ 1080 / 60 Hz,1280 ﾗ 1024 / 60 Hz, 1280 ﾗ 720 / 60 Hz, 1024 ﾗ 768 / 60 Hz Recording resolution: | Main stream: 1080P (non-real-time) / 720P / WD1/ VGA / 4CIF / CIF;Sub-stream: WD1(non-real-time) / 4CIF(non-real-time) / CIF / QCIF / QVGA Frame Rate: | Main stream: 1/16 fps ~ Real time frame rate Sub-stream: 1/16 fps ~ Real time frame rate Video Bit Rate: | 32 Kbps-6 Mbps Audio Output: | 1-ch RCA(2.0 Vp-p, 1k?) Audio Bit Rate: | 64kbps Dual Stream: | Support Playback Resolution: | 1080P / 720P / VGA / WD1 / 4CIF / CIF / QVGA / QCIF Synchronous Playback: | 4-ch Network management Remote connections: | 128 Network protocols: | TCP/IP, PPPoE, DHCP, DNS, DDNS, NTP, SADP, SMTP, SNMP, NFS, iSCSI, UPnPTM, HTTPS Hard Disk Driver Interface Type: | 1 SATA Interface Capacity: | Up to 8TB capacity for each disk External Interface Network Interface: | 1; 10M / 100M self-adaptive Ethernet interface USB Interface: | 2 USB 2.0 Interfaces Serial Interface: | 1; standard RS-485 serial interface, half-duplex General Power Supply: | 12V DC Consumption: | ? 15W Working Temperature: | -10 ｺC ~+55 ｺC (14 ｺF ~ 131 ｺF) Working Humidity: | 10% ~ 90% Chassis: | 1U chassis Dimensions: | 315 ﾗ 242 ﾗ 45mm (12.4 ﾗ 9.5 ﾗ 1.8 inch) Weight: | ? 1.5Kg (3.3lb)