Steady; Reliable; 8 channel DVR card; Real-time compression; Plug and Play; Compatible with Windows 2000/XP;8-channel video; PTZ functionSupport PAL/NTSC, every channel can work independently without interaction Multi-channel overlay with low CPU occupancySoftware Video Codec: Support MPEG4 ASP/ WMV9 codec Compression Rate: 64K-2Mbps Frame: exchangeable fps from 1-30 fps Recording in MP4 format; ...