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About product and suppliers:
        Alibaba.com offers 129,837 3.1a products. About 9% of these are computer cables & connectors, 8% are charger, and 5% are car charger. 

A wide variety of 3.1a options are available to you, such as mobile phone, standard battery, and camera. You can also choose from electric, dc/ac inverters, and external. As well as from free samples, paid samples. 

There are 129,247 3.1a suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 97%, 1%, and 1% of 3.1a respectively. 

.1a products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 31,186 with ISO9001, 21,012 with Other, and 4,370 with OHSAS18001 certification.