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About product and suppliers:
        Alibaba.com offers 3,996 rs232 memory usb products. such as paid samples, free samples. 

There are 4,043 rs232 memory usb suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 98%, 1%, and 1% of rs232 memory usb respectively. 

Rs232 memory usb products are most popular in North America, Domestic Market, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,860 with ISO9001, 1,597 with Other, and 971 with ISO14001 certification.