Compression: H.264
 Preview Resolution: 704*576(PAL),640*480(NTSC)
 Operation Mode: Record,Playback,Preview,Backup,Network
 Video input: 4CH
 Video input interface: D-SUB to BNC(1.0Vp-p,75Ω)
 HDD Occupation: 150-200M/H/CH
 Record Frames: 100fps PAL,120fps NTSC
 Record Resolution: 352*288(PAL),320*240(NTSC)
 Playback Mode: Multi-channel playback,forward & backward
 Audio input: 2ch
 Alarm:  Freely setup the motion detection areas,sensitivity is adjustable,realize the alarm I/O,with professional alarm device
 PTZ Control: Support Pelcod D/P,Setting preseting spot,controlling and remote controlling PTZ Lens
 Network Protocol: 10/100 Base-T TCP/IP,UDP,HTTP,NTP,DHCP,DDNS
 Network Function: IE Remote monitoring/Remote Control/Remote setup/Remote playback
 Record Mode: Continuous/Schedule/Motion/Alarm
 Authorization: Multi-user*s authorization management,User authorization setup
 Working Temperature: -10 ℃To50 ℃
 Working humidity: 10%-90%
Operating System Support Windows2000/XP/2003/VISTA