Corsair

Corsair CP-9020094-UK RM1000x 1000 W 80 Plus Gold Certified Modular 135 mm Thermally Controlled Fan Power Supply Unit - Black

Name: Corsair CP-9020094-UK RM1000x 1000 W 80 Plus Gold Certified Modular 135 mm Thermally Controlled Fan Power Supply Unit - Black
Brand: Corsair
SKU: B015PWMTJ2

Status: Corsair CP-9020094-UK RM1000x 1000 W 80 Plus…: Unavailable on Amazon as of 2026-10-06 22:13 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The Corsair CP-9020094-UK RM1000x 1000 W 80 Plus Gold Certified Modular: 1000 W handles a high-end GPU plus overclocked CPU with headroom; main trade-off: 1000 W is overkill for mid-range single-GPU builds.

Unavailable on Amazon as of 2026-10-06 22:13 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Corsair RMX Series — $234.99 on Amazon as of 2026-10-06 22:16 UTC (price may vary).

View Current Price — $234.99

Similar: Fractal Design Ion 3 Gold 1000W Black 80 Plus… — $159.99 on Amazon as of 2026-10-06 16:25 UTC (price may vary).

View Current Price — $159.99

Similar: CORSAIR RM1000x Fully Modular ATX Power Supply… — $109.50 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $109.50

Original listing (currently unavailable) → Compare to similar power supplies

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-06

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. About the author →

Pros & Cons

Pros

✓ 1000 W handles a high-end GPU plus overclocked CPU with headroom
✓ 80 PLUS Gold certification cuts wasted heat and running cost
✓ Zero RPM mode keeps the 135 mm fan stopped at low and medium loads
✓ 100% Japanese 105C capacitors and 100,000-hour rated MTBF
✓ 10-year warranty, unusually long for a PSU

Cons

✗ 1000 W is overkill for mid-range single-GPU builds
✗ Fully modular design means loose cables to store and not lose
✗ 135 mm depth and modular plugs can crowd small-form-factor cases
✗ UK-market SKU (CP-9020094-UK), so check the bundled mains cable type

Manufacturer description

The Corsair RM1000x is a 1000 W fully modular power supply built for high-performance PCs where reliability matters more than saving a few dollars at checkout. It carries 80 PLUS Gold certification, so a larger share of the power it pulls from the wall reaches your components instead of turning into waste heat. Corsair specifies 100% Japanese 105C capacitors throughout, along with a rated MTBF of 100,000 hours, and backs the unit with a 10-year warranty. The 135 mm thermally controlled fan uses Zero RPM mode, staying completely stopped at low and medium loads so your build runs virtually…

SpecPicks Verdict

SpecPicks scored Corsair CP-9020094-UK RM1000x 1000 W 80 Plus Gold Certified Modular… 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 1000 W enough for an RTX 4090 or similar high-end GPU?

1000 W is the capacity most high-end single-GPU builds are specified around, but check your specific graphics card and CPU maker's recommended PSU wattage before buying, since transient spikes vary by model.

How loud is the RM1000x?

Corsair's Zero RPM fan mode stops the 135 mm thermally controlled fan entirely at low and medium loads, so the unit is virtually silent outside of sustained heavy load.

What warranty does Corsair offer on this power supply?

Corsair lists a 10-year warranty for this unit, along with a rated MTBF of 100,000 hours. Confirm current terms and regional coverage on the product listing.

Is this power supply fully modular?

Yes. All DC cables detach, so you connect only the ones your build uses, which keeps the case interior clear and simplifies later upgrades.

Key Features

80 Plus Gold certified High efficiency operation
100% all Japanese 105C capacitors Premium internal components ensure solid power delivery
Zero RPM fan mode Virtually silent operation. MTBF hours 100,000 hours
Fully modular cables Make your builds and upgrades easy, with clean, ideal-looking results
10 years warranty

Full Specifications

ASIN	B015PWMTJ2
Brand	Corsair
Color	black
Series	Capacitor
Wattage	1000 watts
Department	Default Category
Model Name	Capacitor
Form Factor	ATX
Item Weight	2003 Grams
Manufacturer	CORSAIR HOLDINGS HONG KONG LTD
Model Number	CP-9020094-UK
Connector Type	20+4 Pin ATX
Cooling Method	Air
Output Wattage	1E+3 Watts
Item model number	CP-9020094-UK
Compatible Devices	PC
Product Dimensions	5.91 x 7.09 x 3.39 inches
Date First Available	October 6, 2015
Item DimensionsLxWxH	5.91 x 7.09 x 3.39 inches
Item dimensions L x W x H	5.91 x 7.09 x 3.39 inches

Ready to buy?

Corsair CP-9020094-UK RM1000x 1000 W 80 Plus Gold Certified Modular 135 mm Thermally Controlled Fan Power Supply Unit - 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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