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About product and suppliers:
        Alibaba.com offers 809 duo usb products. About 1% of these are data cables, 1% are mobile phone cables, and 1% are mp3 / mp4 player cable. 

A wide variety of duo usb options are available to you, such as camera, mobile phone, and computer. You can also choose from free samples, paid samples. 

There are 809 duo usb suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of duo usb respectively. 

Duo usb products are most popular in North America, Western Europe, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 119 with Other, 56 with ISO9001, and 7 with ISO14001 certification.
        
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