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Corsair

CORSAIR RM850x Fully Modular ATX Power Supply - 80 PLUS Gold - Low-Noise Fan - Zero RPM - Black

    • Based on 10,885 reviews
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Returnable until Jan 31, 2025

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Availability: Only 4 left in stock, order soon!
Fulfilled by Amazon
Arrives Jan 26 – Jan 30
Order within 13 hours and 19 minutes
Available payment plans shown during checkout

Style: RMx


Size: 850W


Color: Black


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

The product is multiple voltage compatible, that voltage arrange is 100-240V.

Model Name: RM850X


Brand: Corsair


Compatible Devices: Personal Computer


Connector Type: ATX


Output Wattage: 850


Form Factor: ATX


Wattage: 850 watts


Cooling Method: Air


Item dimensions L x W x H: 6.3 x 5.91 x 3.39 inches


Item Weight: 1.7 Kilograms


Brand: ‎Corsair


Series: ‎RM850X


Item model number: ‎CP-9020200-NA


Item Weight: ‎3.74 pounds


Product Dimensions: ‎6.3 x 5.91 x 3.39 inches


Item Dimensions LxWxH: ‎6.3 x 5.91 x 3.39 inches


Color: ‎Black


Manufacturer: ‎Corsair


Country of Origin: ‎Vietnam


Date First Available: ‎June 22, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 26 – Jan 30

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

    • Reliable Power Delivery with Efficiency and Modular Design!
Style: RMx Size: 750W Color: Black
The Corsair RMX Series (2021) RM750x is a 750 Watt power supply that exemplifies reliability, efficiency, and modular design. This power supply unit (PSU) has surpassed my expectations, providing stable and consistent power delivery while offering a convenient and tidy cable management solution. The standout feature of the Corsair RM750x is its robust 750 Watt power output. This wattage is more than enough to handle high-end gaming rigs and power-hungry components, ensuring that my system gets the required power for peak performance. With an 80 Plus Gold certification, the RM750x guarantees high energy efficiency, reducing power wastage and lowering electricity bills. Its power efficiency also translates into less heat generation, leading to quieter operation and improved system longevity. The fully modular design of the RM750x is a game-changer for cable management. It allows me to connect only the necessary cables, minimizing clutter and maximizing airflow inside my PC case. This results in a clean and organized build with improved cooling capabilities. The PSU's zero RPM fan mode ensures silent operation during low to medium loads, as the fan only spins up when required, keeping noise levels at a minimum, even during intense gaming sessions. The RM750x comes equipped with high-quality Japanese capacitors, ensuring exceptional reliability and stability. These capacitors contribute to the PSU's long lifespan and consistent performance. Corsair is a reputable brand known for its high-quality PC components, and the RMX Series continues that tradition. The RM750x is a testament to Corsair's commitment to providing top-tier power supplies for enthusiasts and professionals. In conclusion, the Corsair RMX Series (2021) RM750x is a reliable and efficient power supply unit that offers stable power delivery and a modular design for easy cable management. Its 750 Watt power output, 80 Plus Gold certification, and silent operation make it the ideal choice for powering high-performance gaming systems. If you're looking for a premium power supply with excellent efficiency and clean cable management, the Corsair RM750x is the perfect option. I highly recommend this PSU for its outstanding performance and the peace of mind it brings to my PC build! ... show more
Reviewed in the United States on August 3, 2023 by Steven
    • Works, stable, silent - side mount nice - 4080/90 connector included
Style: RMx Shift (ATX 3.0 & PCIe 5.0) Size: 1200W Color: Black
Does what it should. Powerful PC with lots of connections and 100% stable (as to be expected). Very silent. Side mounted cables are nice but not as trouble-free as I had expected. Its still a tight fit when you have a lot of cables and I did need a special connector to make ends meet. I am still sold to the side mount idea and if you have less stuff than I (the 98% will) it will be a huge advantage in cable management. Finally this comes with the special connector for the 4080/90, so no worry about melting plastic. [got the cheaper "as new" version - and mine was actually "new"] ... show more
Reviewed in the United States on October 2, 2024 by Maiaibing
    • Unleash Power and Silence: Corsair RM850x (2021) Power Supply Review
Style: RMx Size: 850W Color: Black
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
    • Great quality PSU
Style: RMx Shift (ATX 3.0 & PCIe 5.0) Size: 850W Color: Black
Love this unit and the side cable inputs. It makes for a much cleaner setup inside the case. No issues with the PSU at all, it is super quiet and does the job well. My only minor complaint is I wish the cables were braided. The prices for nicely braided cable extensions is a bit much, I would have expected a higher end PSU to include them out of the box. ... show more
Reviewed in the United States on October 21, 2024 by Quis

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