Power Supplies
Tom's Hardware is an industry leader in power supply (PSU) testing, reviews, and analysis. Here you can find all the details about the latest and greatest power supplies, including news and reviews. You can also head to our best power supplies page for in-depth buying recommendations.
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Corsair HX1500i (2025) ATX 3.1 power supply review
By E. Fylladitakis published
The Corsair HX1500i (2025) ATX 3.1 PSU offers premium power delivery with digital monitoring capabilities, outstanding performance, and impressive thermal design.

Tokyo’s Tech shopper paradise Akihabara Electric Town was just a 'Town' on Friday, due to first power outage in 30 years
By Mark Tyson published
Tokyo’s renowned electronics shopping district was plunged into darkness on Friday due to a very rare power outage.

SAMA P1200 Platinum power supply review
By E. Fylladitakis published
The SAMA P1200 Platinum is a compact, value-oriented power supply unit that delivers solid performance with proven components and practical thermal management in an understated design.

Cougar Polar X2 1200W Platinum Power Supply Review
By E. Fylladitakis published
Exceptional performance and sophisticated thermal management in an elegant white chassis

What sort of power supply do you actually need for an RTX 5090?
By Jarred Walton published
Premium Here are the fundamental requirements for powering the Nvidia RTX 5090, a notoriously difficult card to satisfy.

Thermaltake Toughpower GX3 850W power supply review
By E. Fylladitakis published
Thermaltake's Toughpower GX3 850W is a budget-oriented, non-modular power supply unit that barely meets the mark with concerning compromises in design and thermal performance.

Best Power Supplies 2025
By Aris Mpitziopoulos, E. Fylladitakis last updated
Here are the best power supplies for gaming PCs. These PSUs offer the best reliability, performance and protection for your PC components.

Corsair to replace any RMe PSUs affected by clicking noise, says issue now fixed
By Stephen Warwick published
Corsair has confirmed it has fixed a clicking issue with its RMe PSUs and will replace any affected units.
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