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Looking to buy a power supply? Check out the up-to-date catalogue of 9 webshops. At the moment, the £43.97 Corsair CX450M is the most popular product. Other power supplies high on many people's lists are the Corsair CX450M and the Corsair RM650x. Compare prices and performance of all 3,118 power supplies, and don't forget to read our latest power supply reviews.