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

  • Based on 10,255 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Feb 6 – Feb 16
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Style: RMx (2021)


Size: 1000W


Features

  • 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 105C 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.

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.

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


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


Country of Origin: ‎Vietnam


Date First Available: ‎June 14, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Feb 6 – Feb 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

🚀 Abunda's Overview

This is our summary and key points to consider based on customer reviews.


The Corsair RM850x fully modular power supply unit (PSU) has been praised for its excellent efficiency and silent operation, with notable features including an impressive low-noise fan, exceptional power delivery, and a great build quality. One unique factor to consider, however, is the design of its shift model, specifically suited for side-mounted PSU slots; this may not be compatible with some cases and can present wiring and heat dissipation challenges.

Pros

  • 👍 High-quality build, solid, and durable
  • 🌟 Excellent power efficiency and power delivery
  • 🔇 Very quiet operation, with Zero RPM fan mode
  • ⚙️ Great modularity allowing for easy cable management

Cons

  • ⚠️ May not fit into smaller PC cases because of its size
  • 🔄 In the Shift model, side out connector may not be intuitive for some setups
  • 💼 The Shift model might cause some spacing issues in narrower cases
  • ⚡ Potential heat dissipation challenges due to wiring placement (again in Shift model)

Should I Buy It?

If you're seeking a high-quality, highly efficient PSU that offers seamless and quiet operation, the Corsair RM850x undoubtedly fits the bill. However, be mindful of whether the fully modular design suits your particular PC case and setup. If you're considering the Shift model, ensure that it fits with the space and wiring layout of your case. Overall, this PSU is certainly a worthwhile investment for tech-savvy users and gamers.


  • Great PSU replacement for my Lenovo Legion T5 26AMR5
Style: RMx (2021) Size: 850W
Works great on my Lenovo T5 26AMR5 AMD Ryzen 9 5900x system. TIght fit, remove the PSU bracket and the old PSU and insert and slot it in at an angle with the sata cables connected and connect the mobo, cpu and pcie connectors last after the psu is sloted in place. Powerful and stable and great price. ... show more
Reviewed in the United States on October 18, 2024 by Mick Maestro

  • Solid Power Supply for My Gaming Rig – Quiet, Reliable, and Powerful!
Style: RMx (2021) Size: 750W
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 ... show more
Reviewed in the United States on November 28, 2024 by Quoleo

  • Good price, easy install, works great
Style: RMx (2024) - ATX 3.1 Size: 850W
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. ... show more
Reviewed in the United States on December 11, 2024 by wje

  • Works as expected
Style: RMx (2024) - ATX 3.1 Size: 850W
I was gonna buy the previous version of this model when i saw this one come up , it is very convenient with its new port! I recently needed to upgrade my pc from my old GTX 1060 6gb to a 4070 super and my old 600 psu was definitely not enough. My new GPU has the new nvidia power port and this power supply comes with a nvidia 12pin built in so i dont need to use a dongle of 2 pins to a nvidia 12pin. Also comes with the cable i need to power my new GPU. It very quiet havent noticed any weird noises and fan is very quiet. The build quality is great and the cables have a decent texture to them. ... show more
Reviewed in the United States on December 10, 2024 by EfrainSRT

  • Unleash Power and Silence: Corsair RM850x (2021) Power Supply Review
Style: RMx (2021) Size: 850W
I recently purchased the Corsair RM850x (2021) Fully Modular ATX Power Supply, and I must say, I am extremely impressed with its performance and features. Corsair has always been known for delivering high-quality power supplies, and the RM850x is no exception. Here's my review of this remarkable power supply. First and foremost, the efficiency of the RM850x is outstanding. With its 80 PLUS Gold certification, it delivers excellent power efficiency, ensuring that my system consumes less energy and runs cooler. This not only helps in reducing electricity bills but also contributes to the overall longevity and reliability of my system. The fully modular design of the RM850x is a game-changer. It allows for easy cable management, as I can connect only the cables I need and keep the rest neatly stored away. This not only enhances the aesthetics of my build but also improves airflow within the case. The modular design also makes installation a breeze, as I can effortlessly connect the required cables without any clutter or hassle. One of the standout features of this power supply is its low-noise fan. The fan operates silently under regular loads, and I barely notice its presence. It only kicks in when the system is under heavy load, and even then, the noise levels are impressively low. The Zero RPM fan mode is particularly noteworthy, as it ensures complete silence during idle or low-power usage scenarios. This is a great feature for those who prefer a quiet computing experience. The build quality of the RM850x is top-notch. The unit feels solid and durable, and the black finish gives it a sleek and premium look. The cables provided are of high quality and have a premium feel as well. The power supply comes with all the necessary protections, including over-voltage, under-voltage, over-power, over-temperature, and short-circuit protection, ensuring the safety of my components. In terms of power delivery, the RM850x handles my system with ease. It provides ample power for my high-end components, including a demanding CPU and a high-performance graphics card. The voltage regulation is excellent, and I have not encountered any stability issues or power-related problems since installing this power supply. One minor drawback of the RM850x is its size. It's a bit larger than some other power supplies on the market, so it might not fit into smaller PC cases. However, in most standard ATX cases, this should not be an issue. Overall, the Corsair RM850x (2021) Fully Modular ATX Power Supply is an exceptional product that delivers on all fronts. Its efficiency, modular design, low-noise fan, and solid build quality make it a reliable choice for any PC enthusiast or gamer. With its impressive performance and thoughtful features, the RM850x is definitely worth the investment for those looking for a high-quality power supply to power their systems. I highly recommend the Corsair RM850x to anyone in need of a powerful, efficient, and silent power supply for their PC build. Corsair has once again raised the bar with this outstanding product. ... show more
Reviewed in the United States on July 14, 2023 by Tanner Henry

  • Works great
Style: RMx (2024) - ATX 3.1 Size: 1000W
Zero issues with the power supply. It’s quiet and has plenty of cables. My only gripe is with the cable combs. They can be very difficult to install and impossible to move up and down the cable once they’re installed. The cables themselves, though, are very flexible.
Reviewed in the United States on November 21, 2024 by MiloshMobile

  • Don't pay full price if looking for a modern PSU.
Style: RMx (2021) Size: 1000W
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. ... show more
Reviewed in the United States on November 16, 2024 by Steven Tarren

  • Fits and works
Style: RMx (2021) Size: 750W
Fan is pretty quiet. Works perfect. Lots of sata ports to add if needed.
Reviewed in the United States on November 22, 2024 by BG

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