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About product and suppliers:
        Alibaba.com offers 62,422 smartphone usb products. About 28% of these are power banks, 9% are mobile phone cables, and 6% are computer cables & connectors. 

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

There are 62,398 smartphone usb suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 99%, 1%, and 1% of smartphone usb respectively. 

Smartphone usb products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 12,268 with ISO9001, 7,490 with Other, and 2,173 with BSCI certification.