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Product Description Function Feature: (1)The first software compression DVR card based on Linux OS in China (2)Strong Linux system to prevent virus, attack from hacker (3)Easy, one-station installation from OS to software. Normal user can become installation engineer. (4)One series has 1ch, 4ch, 8ch, flexible combination in one PC (5)Lightning, static proof design for hardware (6)No need to buy the expensive windows OS.
