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About product and suppliers:
        Alibaba.com offers 7,535 4.0 os products. About 29% of these are set top box, 12% are pdas, and 11% are tablet pc. 

A wide variety of 4.0 os options are available to you, such as 1gb, 2gb, and ≥ 4gb. You can also choose from 10", 7", and 8". As well as from intel, mtk, and allwinner. And whether 4.0 os is 32gb, 16gb, or 64gb. 

There are 7,535 4.0 os suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 4.0 os respectively. 

.0 os products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,139 with Other, 875 with ISO9001, and 262 with ISO14001 certification.