Corsair
CORSAIR RM1000x Fully Modular ATX Power Supply
Best high-capacity power supply for demanding enthusiast gaming builds.
Experience reliable and efficient power delivery with the CORSAIR RM1000x Fully Modular ATX Power Supply. This 1000W unit boasts an 80 Plus Gold efficiency rating, ensuring optimal energy usage and reduced heat output. Its fully modular design allows for clean cable management, enhancing airflow within your system. The low-noise fan operates quietly, and the Zero RPM mode keeps it silent during low loads, providing a peaceful computing environment. Built with high-quality components, it offers stable power for demanding PC builds.
$189.99
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Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1062
#28 in Computer Power Supplies
Price vs Category Average
-80%
Below average
Wattage
1000
/ W
Who it's for
- Eco-conscious users wanting lower energy bills and cooler systems
- Quiet-seeking professionals working in noise-sensitive environments
- System builders prioritizing clean aesthetics and optimized airflow
Who should skip it
- Budget-focused shoppers looking for more affordable power solutions
- Casual gamers with hardware that does not require high wattage
- Small form factor enthusiasts building in compact PC cases
Performance breakdown
Power Stability
Delivers rock-solid voltage regulation even under intense gaming or rendering loads.
Cable Management
Fully modular design makes building clean, clutter-free systems incredibly straightforward.
Acoustic Performance
Zero RPM mode ensures complete silence during light desktop tasks.
Energy Efficiency
80 Plus Gold certification keeps power waste and heat output impressively low.
Build Quality
Premium internal components provide long-term reliability for high-end PC builds.
Thermal Management
Efficient design promotes better airflow throughout your entire computer chassis.
Key Specs
Wattage
1000W
Modularity
Fully Modular
Efficiency Rating
80 Plus Gold
Fan
Low-Noise Fan with Zero RPM Mode
Form Factor
ATX
Features
- Fully modular design for easy cable management and improved airflow.
- 80 Plus Gold certified for high efficiency and energy savings.
- Low-noise fan with Zero RPM mode for quiet operation.
- Stable and reliable power delivery for demanding systems.
- Durable construction for long-lasting performance.
What customers say
Customers consistently praise the CORSAIR RM1000x for its outstanding reliability and premium build quality. Many users report a seamless experience, appreciating its quiet operation and the robust performance it delivers for demanding systems. The fully modular design is frequently highlighted as a significant convenience, simplifying installation and cable management. Consumers view this power supply as a dependable and high quality investment, offering excellent peace of mind for their valuable components.
Know before you buy
A fully modular design means every cable can be detached from the power supply unit. This allows you to use only the cables you actually need, which significantly reduces clutter and improves airflow inside your case.
The Zero RPM mode stops the fan entirely during low-load tasks, which reduces wear and tear on the fan bearings. Because the fan isn't spinning when it isn't needed, it stays quieter for longer and collects less dust over time.
For most mid-range gaming builds, 1000W is more than necessary. However, it is an excellent choice if you are using high-end components like power-hungry GPUs or CPUs, or if you want to ensure your system remains efficient and quiet under heavy, sustained workloads.
The 80 Plus Gold rating certifies that the unit operates at a minimum of 87% to 90% efficiency at various load levels. This means less power is wasted as heat, which lowers your electricity costs and helps the unit run cooler.
Yes, this unit follows the standard ATX form factor, making it compatible with the vast majority of mid-tower and full-tower PC cases. Just ensure your specific case has enough clearance for a standard-sized power supply.
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Ask Hayley anything about this product before you decide.
Ready to buy?
$190