1.4ch Dvr card 2.H264 Expression Dvr Card 3.Resolution:704x576,352x288,320x240 4.3years warranty H.264 compression. The ... video , basic real-time in 2 roads, support single system with 4 cards. input1 road audio . Compatible with INTEL, AMD, ... x240. Support Win2000 / XP operating system. Support simplified Chinese, English, N system P system optional. 2013Hotsale Security 4CH DVR Card H264.Expression ...