，Input Type: BNC x 4 ，Video Input: 4, 8, 12 OR 16  Cams -Audio Input: 1 Ch PC Audio   ，Display Rate: 100 fps(PAL), 120 fps(NTSC) -Recording Rate: 100 fps(PAL), 120 fps(NTSC) -Compression format: MPEG4 -Video Resolution: 320x240 (NTSC)、352x288 (PAL) ，Recorder Media: HDD, USB Disk, ZIP, CD-R/W ，Record Mode: Motion/Sensor/Schedule/Manual ，Network: TCP/IP ，I/O Device: 16 Ch Input, 16 Ch Relay Output ，PTZ: Protocol Configurable, Remote Control Capability ，Remote Software: Support Internet Explorer Web Browser   System Requirements ，OS Supported :Windows 2000/Windows XP ，CPU:Intel Pentium III 800 (minimum) ，RAM: 256M (minimum) ，HDD: 80GB (recommended) ，VGA: nVIDIA GeForce II MX200 32 MB..

Video Compression MPEG4 Video Inputs 4 BNC Video Output Using PC VGA VGA Resolution 640x480 Display Resolution Up to 640x480 Display Frame Rate (Shared) 30 FPS Playback Resolution Up to 640x480 Record Frame Rate (Shared) 30 FPS Record Options Time, Alarm, Motion Detection and Manual Search Options Search by Time, Event (Alarm or Motion Detection) Hard Drive Number/Type Supported IDE / ATA / SATA Audio Inputs/Outputs 1 PC Audio input USB Port PC USB Port USB Support CD/DVD Burner, Flash Drive, HDD Ethernet Port PC Ethernet port Remote Monitoring Internet Explorer Software Operating System Support Windows 2000, XP and Vista.....