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Corsair HX1000i, HXi Series, 80 Plus Platinum Fully Modular Ultra-Low Noise ATX Digital Power Supply (Triple EPS12V Connectors, 140mm Fluid Dynamic Bearing Fan, Zero RPM Fan Mode) Black
Corsair

Corsair HX1000i

Bottom line: The Corsair HX1000i: 80 PLUS Platinum efficiency cuts waste heat versus Gold-rated 1000W units; main trade-off: iCUE monitoring needs a USB header and Corsair's software installed.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ 80 PLUS Platinum efficiency cuts waste heat versus Gold-rated 1000W units
  • ✓ Zero RPM Fan Mode keeps the PSU silent at low and medium loads
  • ✓ Three EPS12V connectors cover dual-CPU-socket motherboards
  • ✓ 140mm fluid dynamic bearing fan rated for long service life
  • ✓ iCUE toggles single-rail and multi-rail OCP without opening the case

Cons

  • ✗ iCUE monitoring needs a USB header and Corsair's software installed
  • ✗ Digital platform adds cost over a non-monitored Platinum 1000W unit
  • ✗ 1000W is overkill for single-GPU builds under 400W total draw
  • ✗ Fully modular cables mean tracking loose cables between builds

Manufacturer description

The Corsair HX1000i is a 1000W ATX power supply built for systems that keep adding load rather than trading it away. Its 80 PLUS Platinum efficiency rating means less of the wall draw turns into waste heat, and a 140mm fluid dynamic bearing fan handles what heat remains. Zero RPM Fan Mode stops the fan entirely at low and medium loads, so the HX1000i stays effectively silent during desktop work, browsing, and light gaming, and only spins up when the load justifies it. Three EPS12V connectors cover modern motherboards that want dual CPU power plus headroom, and the fully modular cabling lets…

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SpecPicks Verdict

SpecPicks scored Corsair HX1000i using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Corsair's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. 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 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.

Frequently Asked Questions

Is the Corsair HX1000i quiet enough for a bedroom or recording setup?

Zero RPM Fan Mode switches the 140mm fan off entirely at low and medium loads, so the unit is near-silent during desktop use and light gaming. The fluid dynamic bearing fan only engages under heavier draw.

How many CPU power connectors does the HX1000i have?

It ships with three EPS12V connectors, which covers single-socket boards needing dual 8-pin CPU power plus a spare, and dual-EPS enthusiast and workstation motherboards.

What does the iCUE software actually let me control?

iCUE sets custom fan curves, monitors power settings in real time, and toggles overcurrent protection between single-rail and multi-rail modes on the fly, since the HX1000i runs a fully digital platform.

What is the warranty on the Corsair HX1000i?

Corsair backs the HXi Series with a ten-year warranty, supported by Japanese 105-degree-C-rated electrolytic capacitors. Check the product listing for current terms in your region.

Key Features

  • Fully Modular Cabling: Connect only the cables your system needs, making clean and tidy builds easy.
  • Triple EPS12V Connectors: For full compatibility with modern motherboards.
  • 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-the-fly.
  • Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.

Full Specifications

BrandCorsair
Wattage1000
Fan Size140 Millimeters
Model NameCP-9020214-NA
Unit Count1 Count
Form FactorATX
Model NumberCP-9020214-NA
Built-In MediaCorsair HX1000i
Connector TypeATX
Cooling MethodAir
Number of Fans1
Item Dimensions7.09 x 5.91 x 3.39 inches
Mfr Part NumberCP-9020214-NA
Zero RPM Fan ModeAt low and medium loads the cooling fan switches off entirely for near-silent operation.
Compatible DevicesPersonal Computer
Connector Quantity15
Power Supply DesignFull Modular
Warranty Description10 year manufacturer
Fully Modular CablingConnect only the cables your system needs, making clean and tidy builds easy.
Maximum Input Voltage240 Volts (AC)
Full listing titleCorsair HX1000i, HXi Series, 80 Plus Platinum Fully Modular Ultra-Low Noise ATX Digital Power Supply (Triple EPS12V Connectors, 140mm Fluid Dynamic Bearing Fan, Zero RPM Fan Mode) Black

Hardware benchmark data

Ready to buy?

Corsair HX1000i, HXi Series, 80 Plus Platinum Fully Modular Ultra-Low Noise ATX Digital Power Supply (Triple EPS12V Connectors, 140mm Fluid Dynamic Bearing Fan, Zero RPM Fan Mode) 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.

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Corsair HX1000i, HXi Series, 80 Plus Platinum Fully Modular Ultra-Low Noise ATX Digital Power Supply (Triple EPS12V Connectors, 140mm Fluid Dynamic Bearing Fan, Zero RPM Fan Mode) Black
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