Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply
Bottom line: The Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply ($234.99 on Amazon as of 2026-10-06): 80 PLUS Platinum efficiency cuts heat and wasted power draw; main trade-off: 1000W is more headroom than single-GPU or budget builds need.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 80 PLUS Platinum efficiency cuts heat and wasted power draw
- ✓ ATX 3.1 and PCIe 5.1 certified for RTX 50-series transient spikes
- ✓ Fully modular cabling: connect only the cables your build needs
- ✓ Zero RPM mode shuts the 140mm FDB fan off at low/medium loads
- ✓ Japanese 105C capacitors backed by a 10-year warranty
Cons
- ✗ 1000W is more headroom than single-GPU or budget builds need
- ✗ iCUE fan-curve and monitoring software is Windows-only
- ✗ Platinum-tier pricing sits above basic 1000W units
- ✗ Digital iCUE feature set adds setup steps for first builds
Manufacturer description
CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.0 and PCIe 5.0 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a ten-year warranty. Wake your computer faster and consume less power with…
SpecPicks Verdict
SpecPicks scored Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies & cables category. Compare with similarly-priced alternatives in the power supplies & cables category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Fully Modular Cabling: Connect only the cables your system needs, making clean and tidy builds easy.
- Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and resisting transient power spikes.
- 140mm Fluid Dynamic Bearing (FDB) Fan: Delivers extremely quiet and long-lasting fan performance.
- Powerful CORSAIR iCUE Software: Create custom fan curves, monitor power settings, and toggle between single to multi-rail overcurrent protection (OCP) on-thefly.
- Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.
Full Specifications
| Brand | Corsair |
|---|---|
| Color | Black |
| Wattage | 1000 watts |
| Fan Size | 14 centimeters |
| Model Name | HX1000i |
| Unit Count | 1 Count |
| Form Factor | ATX |
| Model Number | CP-9020259-NA |
| Built-In Media | Item |
| Connector Type | atx,pcie |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 1000 |
| Item Dimensions | 7.09 x 5.91 x 3.39 inches |
| Mfr Part Number | CP-9020259-NA |
| Number of Items | 1 |
| Number of Packs | 1 |
| Zero RPM Fan Mode | At low and medium loads the cooling fan switches off entirely for near-silent operation. |
| Compatible Devices | Monitor, Personal Computer |
| Connector Quantity | 34 |
| Full listing title | Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - Fluid Dynamic Bearing Fan - CORSAIR iCUE Software Compatible - 80 Plus Platinum Efficiency - Black |
Ready to buy?
Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - Fluid Dynamic Bearing Fan - CORSAIR iCUE Software Compatible - 80 Plus Platinum Efficiency - Black is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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