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About product and suppliers:
        Alibaba.com offers 2,008 pen driver 4gb products. About 25% of these are usb flash drives, 1% are ballpoint pens. 

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

There are 2,008 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 South America. 

You can ensure product safety by selecting from certified suppliers, including 407 with ISO9001, 249 with Other, and 117 with ISO14001 certification.