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About product and suppliers:
        Alibaba.com offers 20,820 cctv dvr products. About 31% of these are cctv camera, 25% are cctv dvr, and 1% are switching power supply. 

A wide variety of cctv dvr options are available to you, such as free samples, paid samples. 

There are 20,198 cctv dvr suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 98%, 1%, and 1% of cctv dvr respectively. 

Cctv dvr products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 3,672 with ISO9001, 2,408 with Other, and 273 with ISO14001 certification.