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About product and suppliers:
        Alibaba.com offers 105,254 4gb usb products. About 57% of these are usb flash drives, 1% are computer cables & connectors, and 1% are mobile phone cables. 

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

There are 104,700 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 23,744 with Other, 10,020 with ISO9001, and 3,020 with ISO14001 certification.