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About product and suppliers:
        Alibaba.com offers 569 portable msr products. About 37% of these are pos systems, 6% are card reader. 

A wide variety of portable msr options are available to you, such as memory stick card, cf card, and mmc card. You can also choose from all in 1 / multi in 1, single. As well as from external, internal. And whether portable msr is paid samples, or free samples. 

There are 574 portable msr suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and Taiwan, which supply 76%, 21%, and 1% of portable msr respectively. 

Portable msr products are most popular in Eastern Europe, South America, and North America. 

You can ensure product safety by selecting from certified suppliers, including 67 with ISO9001, 51 with Other, and 8 with ISO14001 certification.