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About product and suppliers:
        Alibaba.com offers 71,191 main board products. About 3% of these are other pcb & pcba, 1% are plastic sheets, and 1% are power distribution equipment. 

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

There are 70,850 main board suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and India, which supply 99%, 1%, and 1% of main board respectively. 

Main board products are most popular in North America, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 7,911 with Other, 7,308 with ISO9001, and 2,437 with ISO14001 certification.