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CORSAIR RM1000x Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black

4.7 out of 5 stars 10,816 ratings
$186.19
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Style: RMx (2021)
Size: 1000W
Model Name RM1000x
Brand Corsair
Compatible Devices Personal Computer
Connector Type ATX
Output Wattage 1E+3 Watts
Form Factor ATX
Wattage 1000 watts
Cooling Method Air
Item dimensions L x W x H 7.09 x 5.91 x 3.39 inches
Item Weight 2 Kilograms

About this item

  • Fully Modular: Only connect the cables your system needs, making clean and tidy builds easier.
  • 135mm Magnetic Levitation Fan: Utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low noise, and superior reliability.
  • EPS12V Connector: For wide compatibility with modern graphics cards and motherboards.
  • 100% All Japanese 105°C Capacitors: Premium internal components ensure unwavering power delivery and long-term reliability.
  • Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.
  • 80 PLUS Gold Certified: High efficiency operation for lower power consumption, less noise, and cooler temperatures.
› See more product details

This product is available as Renewed.

Corsair RMX Series (2021), RM1000x, 1000 Watt, Gold, Fully Modular Power Supply (Renewed)
Corsair RMX Series (2021), RM1000x, 1000 Watt, Gold, Fully Modular Power Supply (Renewed) $119.95 & FREE Shipping. Details
(68)
Works and looks like new and backed by the Amazon Renewed Guarantee

WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

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Price$186.19-6% $299.98
List: $319.99		$176.99$178.39$99.99$214.99
Delivery
Get it as soon as Thursday, Apr 10
Get it as soon as Thursday, Apr 10
Get it as soon as Thursday, Apr 10
Get it as soon as Thursday, Apr 10
Get it as soon as Thursday, Apr 10
Get it as soon as Saturday, Apr 12
Customer Ratings
4.74.7 out of 5 stars10,816
4.64.6 out of 5 stars326
4.54.5 out of 5 stars655
4.64.6 out of 5 stars3,237
4.24.2 out of 5 stars634
4.74.7 out of 5 stars3,808
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Product Description

CORSAIR RM1000x Series fully modular power supplies with EPS12V connectors are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC. RM1000x PSUs use only Japanese 105°C capacitors, for long life and reliability backed by a ten-year warranty. A 135mm magnetic levitation bearing fan ensures high performance coupled with low noise.

Product information

Technical Details

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Other Technical Details
Brand ‎Corsair
Series ‎RM1000x
Item model number ‎CP-9020201-NA
Item Weight ‎4.4 pounds
Product Dimensions ‎7.09 x 5.91 x 3.39 inches
Item Dimensions LxWxH ‎7.09 x 5.91 x 3.39 inches
Color ‎Black
Manufacturer ‎Corsair
ASIN ‎B08R5PH1VY
Date First Available ‎June 14, 2021

Additional Information

Customer Reviews
4.7 out of 5 stars 10,816 ratings

4.7 out of 5 stars
Best Sellers Rank #175 in Computer Power Supplies

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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From the manufacturer

MAGNETIC LEVITATION COOLING MEETS HIGH EFFICIENCY

CORSAIR RMx Series fully modular power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC with the cooling power of potent Magnetic Levitation fans.

135MM MAGNETIC LEVITATION FAN

Utilizes a magnetic levitation bearing and custom engineered rotors for high performance, low bearing noise, and superior reliability.

HIGH EFFICIENCY

With upwards of 90% peak efficiency, RMx produces less noise and less heat, which means less time worrying and more time gaming.

FULLY MODULAR WITH DUAL EPS12V CONNECTORS

Completely modular cables means you only connect the cables your system needs, and the wide range of included cables adds broad compatibility with modern graphics cards and motherboards.

Also compatible with the 12-pin GPU Power Cable for the hottest new GPUs.

ZERO RPM FAN MODE

At low and medium loads the cooling fan switches off entirely for near-silent operation, but once the action picks up, the fan activates, ensuring critical component temps stay in check.

TECHNOLOGY AND RELIABILITY

For consistent, reliable power and superb electrical performance, each RMx Series power supply features a robust resonant LLC topology with DC-DC conversion, and 105°C rated 100% Japanese capacitors.

From the brand

Product guides and documents

User Guide (PDF)

Customer reviews

4.7 out of 5 stars
10,816 global ratings

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Customers say

Customers find the power supply performs well with 7800X3D machines and provides sufficient power for 13700KF processors, with high-quality components and reliable operation. They appreciate its quiet operation, with one customer noting the 140mm fluid dynamic bearing fan runs whisper-quiet, and find it easy to cable manage and install. Customers consider it a great value for money and a long-term investment. The cable quality receives mixed feedback, with some praising the modular design while others report receiving defective cables.

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250 customers mention "Functionality"223 positive27 negative

Customers report that the power supply works like a champ and performs impressively, with one customer specifically noting its compatibility with 30-series RTX graphics cards.

"...Cables are also easy to connect and disconnect with no problems at all and the dedicated 12v-2x6 port is great to have since it lessens the amount..." Read more

"...– solid, reliable, and built to handle the demands of a high-performance gaming machine...." Read more

"...Powering a Ryzen 9700X and Radeon 7800XT, everything has been great...." Read more

"...With its impressive performance and thoughtful features, the RM850x is definitely worth the investment for those looking for a high-quality power..." Read more

242 customers mention "Power supply"172 positive70 negative

Customers praise the power supply's performance, noting it provides more than enough power for 13700KF processors and offers high wattage.

"It does its job and provides power to my PC components with a fantastic gold efficiency rating...." Read more

"...Overall, the RM750x feels like a top-tier power supply – solid, reliable, and built to handle the demands of a high-performance gaming machine...." Read more

"...11 year old Corsair PSU that was still running fine, but under powered for my new build, I expect to have this unit in my pc for many years to come..." Read more

"...the necessary protections, including over-voltage, under-voltage, over-power, over-temperature, and short-circuit protection, ensuring the safety of..." Read more

221 customers mention "Build quality"156 positive65 negative

Customers praise the power supply's build quality, noting its high-quality cables and solid performance with no crashes reported.

"...Overall, the RM750x feels like a top-tier power supply – solid, reliable, and built to handle the demands of a high-performance gaming machine...." Read more

"This has been a solid power supply for my first build. Powering a Ryzen 9700X and Radeon 7800XT, everything has been great...." Read more

"...I'm still giving it 5 stars but the fan shroud is very flimsy and can be easily pushed in causing the fan to hit on startup...." Read more

"...The power supply comes with all the necessary protections, including over-voltage, under-voltage, over-power, over-temperature, and short-circuit..." Read more

187 customers mention "Quietness"163 positive24 negative

Customers appreciate the power supply's quiet operation, noting it remains super quiet even under load and is non-audible in their systems, with one customer highlighting the whisper-quiet 140mm fluid dynamic bearing fan.

"...The 750W is more than enough to power my setup, and it runs super quietly – I barely hear a thing, even during intense gaming sessions...." Read more

"...This is a great feature for those who prefer a quiet computing experience. The build quality of the RM850x is top-notch...." Read more

"Easy to install, quiet. Overpowered for the system, but may be okay if I ever install a big graphics card. Very happy so far...." Read more

"...5. Has plenty of cables for almost any device. 6. It runs fair quiet and cool. 7. I got mine for 60 off. Cons to be fair,..." Read more

152 customers mention "Appearance"149 positive3 negative

Customers like the appearance of this power supply unit, describing it as an outstanding and great choice, with one customer noting its quiet operation.

"...the Corsair RM850x (2021) Fully Modular ATX Power Supply is an exceptional product that delivers on all fronts...." Read more

"...6. It runs fair quiet and cool. 7. I got mine for 60 off. Cons to be fair, 1...." Read more

"...The Corsair RM1000x is an outstanding PSU that combines high efficiency, silent operation, premium components, and excellent power delivery...." Read more

"Looks very nice in my tower. The quality is miles over the stock one that came in the pc...." Read more

124 customers mention "Ease of installation"103 positive21 negative

Customers find the power supply easy to install and cable manage, with one customer noting it works well with multi-GPU setups, and another mentioning successful installation in a Corsair 7000D case.

"...Cables are also easy to connect and disconnect with no problems at all and the dedicated 12v-2x6 port is great to have since it lessens the amount..." Read more

"...The modular design made building quite a bit easier, although there is a considerable lack of documentation...." Read more

"...The modular design also makes installation a breeze, as I can effortlessly connect the required cables without any clutter or hassle...." Read more

"Easy to install, quiet. Overpowered for the system, but may be okay if I ever install a big graphics card. Very happy so far...." Read more

85 customers mention "Value for money"75 positive10 negative

Customers find the power supply to be a great value for money, describing it as a long-term investment with high cost performance.

"...performance and thoughtful features, the RM850x is definitely worth the investment for those looking for a high-quality power supply to power their..." Read more

"...and reduced thermal stress on your components, making it a great long-term investment. Premium Components – Built to Last..." Read more

"...The price i paid for this with its 800 watt output was a great value in my opinion. It runs quiet and clean...." Read more

"...great power supply for the money your spending, it is definitely worth the upgrade." Read more

231 customers mention "Cable quality"104 positive127 negative

Customers have mixed opinions about the power supply's cables, with some finding them nice and complete with necessary components, while others report receiving single cables that are short.

"...Otherwise, the cables are solid feeling, if a little stiff." Read more

"...and the dedicated 12v-2x6 port is great to have since it lessens the amount of cables needing to connect to your PSU." Read more

"...My only gripes, the cables of course come in a standard length, too long for any of my connections. But, that's what the tie-wraps are for...." Read more

"...First off, the fully modular design is a game-changer – no more cables cluttering up my case...." Read more

A-tier power supply
5 out of 5 stars
A-tier power supply
Well it… supplies power.Nice cables. Corsair PSUs are some of the best. Looks great too
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Top reviews from the United States

  • Sky
    5.0 out of 5 stars Great and durable PSU
    Reviewed in the United States on January 7, 2025
    Style: RMx (2024) - ATX 3.1Size: 1000WVerified Purchase
    It does its job and provides power to my PC components with a fantastic gold efficiency rating. This version is also smaller than Corsair's previous 1000 watt PSU, but have had no troubles of overheating at all. The fan control knob is also a nice feature to have if you really want to control the speed of your PSU fan. Cables are also easy to connect and disconnect with no problems at all and the dedicated 12v-2x6 port is great to have since it lessens the amount of cables needing to connect to your PSU.
    7 people found this helpful
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  • Quoleo
    5.0 out of 5 stars Solid Power Supply for My Gaming Rig – Quiet, Reliable, and Powerful!
    Reviewed in the United States on November 28, 2024
    Style: RMx (2021)Size: 750WVerified Purchase
    I recently installed the CORSAIR RM750x Fully Modular ATX Power Supply in my gaming machine, and I have to say, I’m pretty impressed. First off, the fully modular design is a game-changer – no more cables cluttering up my case. I only used the cables I needed, making cable management a breeze.

    The 750W is more than enough to power my setup, and it runs super quietly – I barely hear a thing, even during intense gaming sessions. It’s also got plenty of headroom for future upgrades, which is great.

    Overall, the RM750x feels like a top-tier power supply – solid, reliable, and built to handle the demands of a high-performance gaming machine. If you're building a gaming rig and want something that won’t disappoint, this is the one to go for. Just plug it in, sit back, and let the power flow
    8 people found this helpful
    Helpful
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  • Trevor
    5.0 out of 5 stars Quality Power Supply
    Reviewed in the United States on February 15, 2025
    Style: RMx (2024) - ATX 3.1Size: 850WVerified Purchase
    This has been a solid power supply for my first build. Powering a Ryzen 9700X and Radeon 7800XT, everything has been great. The modular design made building quite a bit easier, although there is a considerable lack of documentation. I had to piece together what cables go where from online tutorials and the words "PCIe" and "CPU" on the component-end of the cables. Otherwise, the cables are solid feeling, if a little stiff.
    5 people found this helpful
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  • Bobby Burt
    5.0 out of 5 stars Good purchase for future expansion
    Reviewed in the United States on April 1, 2025
    Style: RMx (2024) - ATX 3.1Size: 850WVerified Purchase
    Looks very nice in my tower. The quality is miles over the stock one that came in the pc. The lengths of the power chord and all the modular cables are excellent. They are braided cables and feel like they are of great quality. The price i paid for this with its 800 watt output was a great value in my opinion. It runs quiet and clean. Definitely made me a fan of corsair products
    Helpful
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  • wje
    5.0 out of 5 stars Good price, easy install, works great
    Reviewed in the United States on December 11, 2024
    Style: RMx (2024) - ATX 3.1Size: 850WVerified Purchase
    I got this to upgrade my Alienware R11. Fits perfectly, works fine. It comes with a LOT of cables, and not only those, but tie-wraps, wire looms, even color-matched mounting screws. No instructions, but they aren't necessary. The ATX spec connectors can't be plugged into the wrong things in general, they're all keyed differently. My only gripes, the cables of course come in a standard length, too long for any of my connections. But, that's what the tie-wraps are for. I wish the SATA power cables included some right-angle ones, cover on the R11 is a very tight fit if you have one of the extra disk bays populated. One final thing, there's a knob on the back of the supply with no description of what it does. Well, it sets the minimum fan speed. In the 'off' position, it enables zero-RPM automatic mode, which is what should be used. Otherwise, it sets an always-running minimum speed that can increase automatically.
    3 people found this helpful
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  • Perfect Cents
    5.0 out of 5 stars Powerful & Reliable – Perfect for High-Performance Builds!
    Reviewed in the United States on March 16, 2025
    Style: RMx (2021)Size: 850WVerified Purchase
    The CORSAIR RM850x Fully Modular ATX Power Supply is exactly what I needed for my gaming and video editing rig. It delivers more than enough power to support my Ryzen 9 7900X CPU and RX 7900 XTX GPU, ensuring everything runs smoothly even under heavy loads. The fully modular design makes cable management a breeze, and the build quality is top-notch. If you’re building a high-performance PC, this power supply is a great choice. Highly recommend!
    Helpful
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  • Steven Tarren
    4.0 out of 5 stars Don't pay full price if looking for a modern PSU.
    Reviewed in the United States on November 16, 2024
    Style: RMx (2021)Size: 1000WVerified Purchase
    Pros,
    1. 1000 watts of course.
    2. It's an A tier rated on the Cultist Network list.
    3. It has great protections for power spikes, surges and power outages.
    4. It's 100% fully modular.
    5. Has plenty of cables for almost any device.
    6. It runs fair quiet and cool.
    7. I got mine for 60 off.

    Cons to be fair,
    1. This is a big unit so make sure your case will support it.
    2. I found that the way the cable are that cable management isn't the easiest compared to other PSU I've used in the past.
    3. If you're looking for a PSU that ATX 3.0 or 3.1 with PCIE 5.0 or 5.1 cable support this PSU would require adapters and fir a lot of people wouldn't be ideal.
    4. For as old as it is it's not worth the regular going price. I got mine on sale for roughly 60 cheaper so that's worth it to me. If you have to pay more than 140 look somewhere else IMO.
    23 people found this helpful
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Top reviews from other countries

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  • Eric
    5.0 out of 5 stars Quiet and High Quality PSU
    Reviewed in Canada on March 5, 2025
    Style: RMx (2021)Size: 750WVerified Purchase
    The Corsair RM750x is an excellent 750W fully modular power supply that delivers reliable performance and efficiency. The build quality is great, with high-quality capacitors for long-term durability. The fully modular design makes cable management easy, keeping the build clean and organized. Above all, it is nice and quiet. Overall, it's a great PSU for gaming or high-performance builds—stable, efficient, and worth the price!
    Report
  • Noshin Rahman
    5.0 out of 5 stars Now comes with thinner and more flexible cables
    Reviewed in Canada on January 21, 2025
    Style: RMx (2024) - ATX 3.1Size: 750WVerified Purchase
    My biggest complaints with Corsair power supplies for the longest time was the cables. They were always super thick, especially the 24 pin cable. Luckily with this refresh, they've made all of those cables incredibly thin and flexible, making them easy to work with and more aesthetically pleasing as well. They even come with cable combs, although I wish there were more. For example there is only one 24 pin cable comb. And while these cables won't beat the quality of custom cables even from cheaper brands like AsiaHorse, they are still better than what you can find from most power supplies.
    Report
  • Kraken01
    5.0 out of 5 stars Works well
    Reviewed in Singapore on August 6, 2024
    Style: RMx (2021)Size: 850WVerified Purchase
    Work fine
    Report
  • Igor
    5.0 out of 5 stars Corsair gold não tem erro
    Reviewed in Brazil on May 7, 2024
    Style: RMx (2021)Size: 850WVerified Purchase
    Excelente fonte, não apresenta defeitos e suporta o computador mesmo quando este consome seus 500W~ sob full load e com picos de tensão. 10 anos de garantia da fábrica, qualidade Corsair/Seasonic. Altamente recomendado, nunca economize na sua fonte.
    Report
  • Huseyin Ahmed
    5.0 out of 5 stars I liked
    Reviewed in Saudi Arabia on February 29, 2024
    Style: RMx (2021)Size: 1000WVerified Purchase
    I liked
    Report