What is a DVR Card?

DVR card is a kind of kit on circuit wafer, which includes soft compression and hard compression.

Soft compression card makes some capture chips as the core, cooperating with periphery kits to achieve video capturing.

Hard compression card captured and compressed image only by chip put software of compression algorithm into DSP chips, making DSP instead of CPU as to decrease pressure of operating CPU. If your surveillance work is similar to the following Descriptions, you can adopt DVR card: CPU with low frequency, multiple cameras, real time recording necessary and hard disk with large capacity.