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About product and suppliers:
        Alibaba.com offers 45 4 channel usb video grabber products. About 31% of these are other home audio & video equipment, 15% are dvr card. 

A wide variety of 4 channel usb video grabber options are available to you, such as male-female, female-female. 

There are 45 4 channel usb video grabber suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 4 channel usb video grabber respectively. 

 channel usb video grabber products are most popular in Northern Europe, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 6 with ISO9001 certification.