4 Video/Audio channels Up to 4 cards for each system        
9-bit ADCs, decoded by multi-line adaptive comb-filter.
Respective compressing and recording, every channel consume 20M~150M disk space per hour.
Realtime Video/Audio recording, up to 16 channels with 352x288 resolution.
Multi-language Watermarking for law enforcement grade video authentication.
Time & date stamping on video playback and network transferring.
Pan / Tilt / Zoom controls for Pelco and other cameras.
Motion detection and recording with pre-recoding.
Scheduled Recording Capability.
Up to 16 camera simultaneous remote viewing by remote software and support IE browser.
SDK for Win 2000 and Win XP.