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About product and suppliers:
            1,940 4 channel mdvr products are offered for sale by suppliers on Alibaba.com, of which cctv dvr accounts for 64%, cctv system accounts for 2%, and audio & video cables accounts for 1%. 

A wide variety of 4 channel mdvr options are available to you, such as h.264, h.265. You can also choose from night vision 4 channel mdvr, as well as from 1280 x 720 4 channel mdvr

There are 1,465 suppliers who sells 4 channel mdvr on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of 4 channel mdvr supply is 100% respectively.