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Looking to buy a power supply? Check out the up-to-date catalogue of 10 webshops. At the moment, the £49.99 Corsair CX450M is the most popular product. Other power supplies high on many people's lists are the Corsair CX450M and the Be quiet! Straight Power 11 650W. Compare prices and performance of all 3,234 power supplies, and don't forget to read our latest power supply reviews.