Video/Audio Input	Video Compression:  H.264 Analog Video Input:  4-ch PAL/NTSC Adaptive:  Support IP Video Input:  8-ch Video Input Interface:  BNC (1.0 Vp-p, 75Ω) Composite Video Input:  Up to 8-ch (Analog video + IP video) Audio Compression:  OggVorbis Audio Input:  4-ch Audio Input Interface:  RCA (2.0 Vp-p, 1 kΩ) Two-way Audio:  1-ch RCA(2.0Vp-p, 1kΩ)
Video/Audio Output	VGA Output:  1-ch, resolution: 1920×1080P/60Hz,1600×1200/60Hz,1280×1024/60Hz, 1280×720/60Hz, 1024×768/60Hz CVBS Output:  1-ch, BNC (1.0 Vp-p, 75 Ω), resolution: PAL: 704 × 576, NTSC: 704 × 480 HDMI Output:  1-ch, resolution: 1920 × 1080P / 60 Hz , 1920 × 1080P / 50 Hz, 1600 × 1200 / 60 Hz, 1280 × 1024 / 60 Hz, 1280 × 720 / 60 Hz, 1024 × 768 / 60 Hz Recording resolution:  4CIF/2CIF/CIF/QCIF Video Spot Output:  1-ch, BNC(1.0Vp-p, 75Ω) Video Loop Output:  Optional Frame Rate:  25fps (P) / 30fps (N) Video Bit Rate:  32 Kbps-8192 Kbps, or user defined (Max. 8192 Kbps) Stream Type:  Video/Video&Audio Audio Output:  2-ch BNC(Linear electrical level, 600Ω) Audio Bit Rate:  16kbps Dual Stream:  Support Playback Resolution:  5MP /3MP / 1080P / UXGA / 720P / 4CIF / VGA / DCIF / 2CIF / CIF / QCIF Synchronous Playback:  8-ch
Hard Disk Driver	Interface Type:  8 SATA interfaces for 4 HDDs + 1 DVD-R/W (default), or 8HDDs Capacity:  Up to 4TB capacity for each disk e-SATA Interface:  1 eSATA interface
External Interface	Network Interface:  1 RJ45 10M/100M/1000M adaptive Ethernet Interface USB Interface:  2 USB 2.0 Interfaces Serial Interface:  1 RJ45 RS-232 interface; 1 RS-485 interface; 1 RS-485 keyboard interface Alarm Input:  4-ch Alarm Output:  2-ch
General	Power Supply:  100~240 VAC, 6.3A, 50~60Hz Consumption:  ≤ 35 W Working Temperature:  -10 °C ~ +55 °C Working Humidity:  10% ~ 90% Chassis:  19-inch rack-mounted 2U chassis Dimensions:  445 × 470 × 90 mm (W × D × H) Weight:  ≤ 8kg (without hard disk or DVD-R/W)