Corsair
HX1000i Fully Modular Ultra-Low Noise Platinum ATX 1000 Watt PC Power Supply
Best high-performance power supply for demanding gaming and professional workstations.
Elevate your PC's performance with the Corsair HX1000i, a 1000-watt power supply unit delivering exceptional Platinum-certified efficiency. Engineered for the demands of modern gaming and professional workstations, it features ATX 3.1 and PCIe 5.1 certification for seamless compatibility with the latest high-end components. The fully modular design ensures a clean build and optimal airflow, while the Fluid Dynamic Bearing fan with Zero RPM mode provides whisper-quiet operation. Built with premium 105°C Japanese capacitors, this PSU guarantees reliable, steady power delivery for even the most demanding systems, optimizing both performance and energy efficiency.
$254.99
Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1062
#28 in Computer Power Supplies
Price vs Category Average
-73%
Below average
Continuous Power
1000
/ Watts
Who it's for
- Eco-conscious users seeking lower electricity bills and cooler systems
- System builders prioritizing clean aesthetics and optimized airflow
- Quiet-computing enthusiasts working in noise-sensitive environments
Who should skip it
- Budget-focused shoppers looking for cost-effective power solutions
- Casual users with standard builds requiring less wattage
- Compact PC builders restricted by limited chassis space
Performance breakdown
Power Efficiency
Platinum certification ensures minimal energy waste during high-intensity computing tasks.
Acoustic Performance
Fluid Dynamic Bearing fan and Zero RPM mode keep operation whisper-quiet.
Component Reliability
Premium Japanese capacitors provide rock-solid stability for sensitive high-end hardware.
Build Flexibility
Fully modular cabling simplifies installation and keeps your case airflow clean.
Future Compatibility
ATX 3.1 and PCIe 5.1 standards support the latest power-hungry GPUs.
Software Integration
iCUE software offers precise, real-time monitoring of your power delivery metrics.
Key Specs
Continuous Power
1000 Watts
Efficiency Rating
80 Plus Platinum
Cybenetics Noise
A
Modular
Fully Modular
Form Factor
ATX
ATX Main Power Connector Type
24 Pin
CPU Power Connectors Count
2
PCIe Connectors Count
5
Features
- Supports latest GPUs and processors
- Ultra-quiet operation with Zero RPM fan
- Reliable performance with Japanese capacitors
- Easy cable management with fully modular design
- Monitor and control via iCUE software
- High efficiency for reduced energy use
- Durable Fluid Dynamic Bearing fan
- ATX 3.1 and PCIe 5.1 certified
What customers say
Customers consistently praise the Corsair HX1000i for its exceptional reliability and remarkably quiet operation. Many highlight its robust build quality and stable power delivery, making it a trusted choice for high performance systems. The fully modular design also receives positive remarks for simplifying cable management and installation. Users feel confident in its long term performance, appreciating the peace of mind it provides. This power supply stands out as a premium, dependable component that delivers on its promises of quiet efficiency and consistent power.
Know before you buy
Yes, the HX1000i is ATX 3.1 and PCIe 5.1 certified, meaning it is specifically designed to support the power requirements and connectivity of the newest generation of high-performance GPUs.
Zero RPM mode allows the 140mm fan to remain completely stationary during low to medium loads, ensuring silent operation. The fan will only spin up automatically when the power supply reaches higher temperatures or increased power demand.
A fully modular design allows you to connect only the cables you need for your specific components. This reduces cable clutter inside your case, which improves internal airflow and makes the overall build process much cleaner.
Yes, the HX1000i integrates with Corsair's iCUE software. This allows you to monitor power delivery, efficiency, and fan speeds directly from your desktop.
The unit is built with premium 105°C-rated Japanese capacitors. These are industry-standard components chosen for their durability and ability to provide stable, consistent power delivery over many years of heavy use.
Yes, the HX1000i features universal input voltage support (100–240V). It will automatically adjust to the local AC input, making it suitable for use in different regions without needing a manual voltage switch.
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$255