The MAX4 DVR uses H.264E (Enhanced H.264) compression technology based on the embedded high speed microprocessors and embedded LINUX operation system. This compression allows for clean viewing on the Internet over narrow bandwidth and dramatically increases storage space. This digital video recorder contains advanced web access, system integration and synchronized audio and video recording features that are suitable for various types of home and professional installations: stores, warehouses, homes, government agencies, education facilities, etc. Features at a glance: * H.264E Compression. BlackFin Video Processors * Embedded High-Speed Motorola Microprocessor & Linux OS * Real-time Synchronized Video and Audio Recording * HDMI Interface for high resolution video output * 4 Channel Playback Simultaneously * Up-to D1(4CIF) recording/playback quality * Support VGA connection to computer monitors * USB 2.0 Mouse Interface for super easy operation * IR Remote Control * Two way audio * Motion detection on every channel * Direct network access using IE Browser * Central management software for viewing/managing multiple DVRs * Up to 1 TeraByte (1,000G) Internal Storage Specifications: Main Board Processor AMD SC1200/266 Multi-Media microprocessor Video Processor BlackFin (ADI) video processors Operation System Embedded LINUX Video Standard NTSC (525 line, 60f/s), PAL (625 line, 50 f/s) Video Compression H.264E (MPEG4 Part 10 - Enhanced) Video Input 4 Channel Video Input Signal NTSC/PAL, BNC (1.0Vp-p,75 Ù) Video Output HDMI, 2 BNC (1.0Vp-p, 75 Ù), VGA (Computer Monitor) Audio Compression ADPCM G.723 8K Audio Input 4 Channel Audio Input Signal 4 BNC (200-2000mV,10K Ù) Audio Output 2 BNC (200-3000mV, 5KÙ) System Resource Pentaplex function: live, recording, playback, backup & remote access Image Resolution Live view 704x480, Playback 704x480,352x240, VGA output 1024x768(NTSC) Motion Detection Area setting: 225 detection areas on the screen; detection sense setting: 3 Video Recording Speed 1-30 fps Variable per channel (NTSC) Total Recording Speed 30 Frames Per Second per Channel; 120 FPS Per DVR Image Quality 6 Levels selectable Hard Disk 1 SATA port, up-to 1TB per DVR Hard Usage Video: 56-900M/Hour, Audio: 14.4M/Hour Alarm Output Ports 3 channels output, output in open/close contact (the third channel is controllable +12V output) Alarm Input Ports 4 Channel Alarm Relay 30VDC 1A, 125 VAC 0.5A (relay output) Network Connection RJ45 10M/100M Ethernet connection Modem Connection RS232 Pan-tilt Control RS485 Power 110VAC / 220VAC Power Consumption 25Watt (w/o HD) Working Temperature 0°C ~ +55°C (32°F~ 130°F) Working Humidity 10% - 90% Barometric Pressure 86kpa - 106kpa Physical Dimension 1U case,14.7”(L)x11.2”(D)x 1.7"(H); Package: 375mmx285mmx45mm (W*D*H), Weight 8 LB (without HD)