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About product and suppliers:
        Alibaba.com offers 3,997 rs232 memory usb products. such as paid samples, free samples. 

There are 4,046 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 Domestic Market, North America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 2,019 with Other, 1,978 with ISO9001, and 847 with ISO14001 certification.