Corsair
AX1500i Digital ATX Power Supply
Best high-wattage power supply for extreme enthusiast PC builds.
The CORSAIR AX1500i is an enthusiast-grade digital ATX power supply delivering 1500 Watts of continuous power with an exceptional 94% efficiency rating. It features CORSAIR iCUE software for in-depth monitoring and control of voltage and performance, along with system-wide RGB lighting synchronization. The PSU utilizes a 140mm fluid dynamic bearing fan with zero RPM mode for silent operation at low to medium loads, ensuring quiet and reliable performance even under heavy demand. Its fully modular design with low-profile, all-black cables simplifies installation and cable management.
$449.99
Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1062
#28 in Computer Power Supplies
Price vs Category Average
-52%
Below average
EPS Connector
2
Who it's for
- Power users running extreme multi-GPU or overclocked workstations
- System builders wanting granular control and real-time performance monitoring
- Enthusiasts prioritizing clean aesthetics and high-quality internal components
Who should skip it
- Budget-conscious builders looking for cost-effective power solutions
- Standard gaming PC owners who do not need excessive wattage
- Users with compact cases requiring smaller power supply dimensions
Performance breakdown
Power Capacity
Massive 1500W output handles extreme multi-GPU setups with ease.
Energy Efficiency
Titanium-rated efficiency minimizes wasted energy and heat output.
Acoustic Performance
Zero RPM mode ensures near-silent operation during light workloads.
Software Integration
iCUE provides granular, real-time control over voltage and system performance.
Cable Management
Fully modular, low-profile cabling makes clean builds straightforward.
Build Reliability
Ten-year warranty reflects exceptional component longevity and engineering.
Key Specs
EPS Connector
2
SATA Connector
20
Fan Bearing Technology
Fluid Dynamic Bearing
Dimensions
150mm x 86mm x 225mm
Modular
Fully
PSU Compatibility
ATX12V v2.4 and EPS12V 2.92 standards
Cable Type
Low-Profile, All Black
Floppy Connector
2
Features
- 1500 Watts of continuous power
- 94% efficiency rating
- CORSAIR iCUE desktop monitoring control
- Zero RPM Fan Mode for silent operation
- Thermally controlled fan adjusts speed to match demand
- Custom-designed 140mm fluid dynamic bearing fan for low noise
- Fully modular design for easy installation
- Low-profile, all-black cables
What customers say
Customers consistently praise the Corsair AX1500i Digital ATX Power Supply for its exceptional reliability and premium build quality. Users frequently highlight its robust performance, quiet operation, and the convenience of digital monitoring through Corsair Link software. While it represents a significant investment, the peace of mind and consistent power delivery it offers make it a highly regarded choice among enthusiasts seeking top tier components for demanding systems. Its long term dependability is a recurring positive point.
Know before you buy
Yes, it is fully modular, meaning every cable can be detached from the power supply. This allows you to use only the cables you need, which significantly reduces clutter and improves airflow inside your case.
The Zero RPM mode keeps the 140mm fan completely off during low to medium loads, ensuring silent operation. The fan only begins to spin once the power supply reaches a certain temperature or load threshold.
Yes, the AX1500i integrates with CORSAIR iCUE software. This allows you to monitor voltage, power draw, and fan speed directly from your desktop, giving you granular control over your system's power delivery.
Absolutely. With 1500 watts of continuous power and 10 PCIe connectors, it is specifically designed to handle the high power demands of multi-GPU configurations.
A 94% efficiency rating, which meets the 80 PLUS Titanium standard, means the unit wastes very little energy as heat. This results in lower electricity costs, less heat output, and more reliable power delivery to your components.
The AX1500i follows the standard ATX form factor, but it is 225mm long. You should check your case specifications to ensure it has enough clearance for a power supply of this depth.
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$450