Corsair
Corsair HX1000i
Best high-performance power supply for demanding enthusiast gaming builds.
The Corsair HXi Series HX1000i is a fully modular, 1000-watt power supply delivering exceptional 80 PLUS Platinum efficiency. It is formally certified for the demanding ATX 3.0 standard and includes the PCIe 5.0 12VHPWR cable for modern GPUs. Built with premium 100% Japanese 105°C-rated electrolytic capacitors, this unit ensures long life and reliability, backed by a ten-year warranty. Its 140mm fluid dynamic bearing fan supports Zero RPM mode for near-silent performance under low to medium loads. Utilize CORSAIR iCUE software for digital monitoring and control over fan curves and power settings, ensuring clean, consistent power delivery for demanding PC builds.
$249.99
More HX Options
Owner Satisfaction
4.8
/ 5
Category Rank
8
/ 1062
#8 in Computer Power Supplies
Price vs Category Average
-73%
Below average
Wattage Output
1000
/ Watts
Who it's for
- Eco-conscious users looking to lower long-term electricity costs
- Quiet-focused builders prioritizing a silent workspace environment
- Power users wanting granular control over system performance metrics
Who should skip it
- Budget-minded shoppers prioritizing value over premium efficiency ratings
- Builders with limited internal USB headers on their motherboards
- Compact PC enthusiasts working within tight chassis space constraints
Performance breakdown
Power Efficiency
Platinum certification ensures minimal energy waste during high-intensity computing tasks.
Component Reliability
Premium Japanese capacitors provide long-term stability for high-end hardware builds.
Modern Compatibility
ATX 3.0 and 12VHPWR support future-proofs your rig for latest GPUs.
Acoustic Performance
Fluid dynamic bearing fan remains whisper-quiet during low to medium loads.
Digital Control
iCUE software offers precise, real-time monitoring and custom fan curve adjustments.
Cable Management
Fully modular design simplifies installation and keeps your case interior clean.
Key Specs
Wattage Output
1000 Watts
Efficiency Rating
80 PLUS Platinum Certified
Form Factor
ATX
Modularity
Fully-Modular
Cooling
140mm Fluid Dynamic Bearing Fan with Zero RPM mode
Capacitors
100% Japanese 105°C-rated electrolytic capacitors
Compliance
ATX 3.0 Certified
Dimensions
150.00 mm (W) x 86.00 mm (H) x 180.00 mm (D)
Features
- Fully digital platform enabling custom fan curves and power monitoring via CORSAIR iCUE software
- Supports Modern Standby sleep mode for faster wake times and lower power consumption
- Includes PCIe 5.0 12VHPWR GPU cable for modern graphics cards
- Supports both SLI and CrossFire configurations
- Equipped with three EPS12V connectors for demanding CPU setups
What customers say
Customers consistently praise the HX1000i for its exceptional reliability and premium build quality. Users appreciate the stable power delivery, which is crucial for high performance systems. The unit operates silently, often running fanless under moderate loads, contributing significantly to a quiet computing experience. While it sits at a higher price point, consumers feel the investment is justified by the Platinum efficiency rating and the peace of mind provided by its robust performance and long term durability. This power supply is viewed as a foundational component that simply works flawlessly.
Know before you buy
Yes, the HX1000i is ATX 3.0 certified and includes a dedicated PCIe 5.0 12VHPWR cable, allowing you to power modern GPUs directly without needing adapters.
Absolutely. By connecting the unit to your motherboard via USB, you can use Corsair iCUE software to monitor power delivery in real-time and create custom fan curves.
It is designed to be near-silent. The 140mm fluid dynamic bearing fan features a Zero RPM mode, which keeps the fan completely off during low to medium loads.
The HX1000i follows the standard ATX form factor, but it is 180mm deep. We recommend checking your case specifications to ensure you have enough clearance for the unit and its modular cabling.
This rating confirms that the power supply is highly efficient, converting more electricity from your wall into usable power for your components. This results in less wasted energy as heat and lower overall power consumption.
Yes, the HX1000i is fully modular. You only need to plug in the cables your specific build requires, which helps keep your case interior clean and improves airflow.
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