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About product and suppliers:
            522 1ch hd sdi dvr recorder products are offered for sale by suppliers on Alibaba.com, of which cctv dvr accounts for 1%. 

A wide variety of 1ch hd sdi dvr recorder options are available to you, such as h.264, h.265. 

There are 2 suppliers who sells 1ch hd sdi dvr recorder on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of 1ch hd sdi dvr recorder supply is 100% respectively.