::HDD Standard Configuration:120GB (Up to 7 HDDs Extendable)
::Operation System:Windows XP
::Network Connector:RJ45 10M/100M self-adaptive to Ethernet
::Video Compression Standard:HD1
::AudIo Compression Standard:OggVorbis
::Record Speed:PAL:25 Frames/Second/CH; NTSC:30 Frames/Second/CH
::Data Size:30M-120M/Channel/Hour
::Alarm Input/Output:External connection
::Recording Inmage Resolution:Real-time display(704*576)/VGA output(480*320-1280*1024)
::Display Mode:Full Screen, 4, 9, 16 Channels
::Intelligent Searching Standard:Time, Date, Camera,Alarm, Event
::Record Mode:The Record Mode of each camera can be Defined as:1-30 Frame(s)/Second;Bachward and Frame Handing 
::Play Mode:Play at different speeds in format of Forward, Backward and Handing 
::Alarm Input Mode:TTL Input VS N.O or N.C alarm detector
::Alarm Output Mode:Open Circuit replay output 0.6V 
::Power Supply:180-240V±10%；50Hz;110-120V±10%, 60Hz Selectable
::Relative Humidity:<90%
::Working Temperature:-5℃~50℃
::DimensionsNet weight:482x175x558mm
::Others:Watch dog built in, Keyboard, Mouse, Software drive disk