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About product and suppliers:
        Alibaba.com offers 105,543 4gb usb products. About 16% of these are usb flash drives, 1% are data cables, and 1% are computer cables & connectors. 

A wide variety of 4gb usb options are available to you, such as free samples, paid samples. 

There are 104,966 4gb usb suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 98%, 1%, and 1% of 4gb usb respectively. 

gb usb products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 28,050 with Other, 9,784 with ISO9001, and 2,894 with ISO14001 certification.