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About product and suppliers:
        Alibaba.com offers 2,339 pen driver 4gb products. About 18% of these are usb flash drives. 

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

There are 2,339 pen driver 4gb suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of pen driver 4gb respectively. 

Pen driver 4gb products are most popular in North America, Western Europe, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 472 with ISO9001, 282 with Other, and 147 with ISO14001 certification.