Best Premium Power Supplies UK 2026

About this band

We have reviewed 8 premium power supplies, and these are the three worth knowing about first. The top-rated pick is the CORSAIR HX1000i SHIFT Fully Modular ATX Power Supply (rated 9.1/10): Brilliant for Corsair ecosystem builders, but a costly indulgence if you're… In second place, the Asus ROG Strix 1000W Platinum White PSU, Fully Modular, 8... (rated 9.0/10): Brilliant for serious white builds, but the five-year warranty gives rivals… Rounding out the top three, the CORSAIR HX1200i (2025) Fully Modular Ultra-Low Noise ATX... (rated 9.0/10): A properly excellent 1200W PSU for high-end and next-gen builds. ATX… Each of these is worth a closer look before you buy, and the full list below covers every option we rate in this band.