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About product and suppliers:
        Alibaba.com offers 1,153,199 power supply products. About 16% of these are ac/dc adapters, 5% are switching power supply, and 1% are pc power supplies. 

A wide variety of power supply options are available to you, such as >500w, 1 - 50w, and 201 - 300w. You can also choose from single, multiple, and dc. As well as from 110v, 220v, and 380v. And whether power supply is free samples, or paid samples. 

There are 1,153,199 power supply suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of power supply respectively. 

Power supply products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 262,358 with ISO9001, 110,825 with Other, and 34,823 with ISO14001 certification.