Compression MPEG4 Video I/O BNC 4-channel inputs / 1-channel output Audio I/O RCA 4-channel inputs / 1-channel output Display Resolution NTSC: 720x480 PAL: 720x576 Display Frame Rate NTSC: 480fps PAL: 400fps Record Resolution NTSC: 720x480, 720x240, 360x240 PAL: 720x576, 720x288, 360x288 Record Frame Rate NTSC: 60fps (720x480), 120fps(360x240) NTSC: 50fps (720x576), 100fps(360x288) HDD Interface IDE or SATA Record Modes Continuous, Motion Detection, Sensor Triggered, Time Schedule Record Picture Quality Low, Normal, High, Higher Sensor & Alarm 16-channel inputs / 1-channel output PTZ Control RS-485 Network Interface RJ45, TCP/IP USB Interface USB2.0 (Optional) VGA Output Optional Remote Control IR remote control Power Supply DC 12V / 5A (adapter included) Dimensions (DxWxH) 400x275x70mm Features: MPEG4 compression SOC single chip, high stability Linux operating system Full-D1 live monitoring, each or quad display Multiple record modes: contineous, motion detection, sensor triggered, time schedule Motion detection: settable window & sensitivity Variable record frame rate & quality level Support hiding & switching channels System self-recovery after power reconnected Video loss alarm function IR Remote control Audio I/O Optional VGA output USB2.0 (Optional) Network monitoring: IE basedOptional VGA output USB2.0 (Optional)  Network monitoring: IE based