Corsair 850 Watt RM850x 80+ Gold Fully Modular ATX Power Supply/PSU
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Corsair 850 Watt RM850x 80+ Gold Fully Modular ATX Power Supply/PSU
Scan code: LN87738 Manufacturer code: CP-9020180-UK
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Corsair 850 Watt RM850x 80+ Gold Fully Modular ATX Power Supply/PSU

850W Corsair RMx Series RM850x, Full Modular, 80PLUS Gold, SLI/CrossFire, Single Rail, 70.8A, 135mm Fan, ATX PSU
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Scan code: LN87738 Manufacturer code: CP-9020180-UK
End of life
This product is no longer available to purchase.

Email me when the availability or price changes

  • SCANPROTECT Protect against installation damage for 28 days.
  • 48HR REPLACEMENT If you need to return this item, your replacement will be dispatched within 2 working days of your product arriving back at Scan.

RM850x - Corsair Power Supply - Fully Modular ATX PSU

850X

Corsair RMx 850W Power SupplyCORSAIR RM850x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient power to your PC to reduce costs and excess heat. Fully modular cables make PC builds and upgrades easy, as you only need to install the cables your system requires. Zero RPM Mode means an RM850x series PSU is virtually silent at low and medium loads, and even at maximum power, a low noise fan ensures quiet operation. Quiet, efficient and dependable, an RM850x PSU has everything you need to power your high-performance PC for years to come.

This PSU is also available in the 750W version :

RMX 750W

Fully Modular Connectivity

connections

KEEP YOUR BUILD LOOKING CLEAN The fully modular design of the RMx power supply means that during your build you can mount the PSU in the case first and then attatch only the cables you need, making builds and upgrades easy with great looking results. Simply connect the cables you need and keep the rest safe for future upgrades.

Compact Size

compact

TEN-YEAR WARRANTY A 160mm-long casing ensures an easy fit in almost all modern enthusiast PC cases. Your guarantee of reliable operation that will last across several system builds.

Completely Modular

modular

BUILD LIKE A PRO Only connect the cables your system needs, making clean and tidy builds easier whilst improving airflow.

RM850x Efficiency & Noise Graphs

RM850x EFFICIENCY

efficiency

RM850x NOISE

noise

Corsair RM850x Key Features

Corsair Quality

80PLUS - Gold

80 PLUS Gold CertifiedGold certification ensures high efficiency operation for less excess heat and lower operating costs.

Japanese Capacitors

Japanese 105°C capacitorsPremium internal components ensure solid power delivery and long term reliability.

lownoise

Zero RPM Fan ModeFan doesn’t turn on until it’s needed, so you’ll enjoy virtually silent operation at low and medium loads.

rails

Corsair 10 Year GuaranteeYour guarantee of reliable operation that will last across several system builds.

Warranty

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

Details
Duration:
120 months
Type:
Return to base
RTB Period:
120 months
Manufacturer Contact Details
Manufacturer:
Scan
Telephone:
01204-474747
Buying Guide
Not sure which power supply is right for you? Read our Power Supplies Buying Guide
Power Supply units
Power Supply units
Date Issued: 28th Apr 2020

Power-supply units, or PSUs, are an integral part of any computer build. Often overlooked, it is the component that is likely to last the longest, and it can be moved between systems when you upgrade to the latest and greatest in the future.

Read More

80 Plus certification
80 Plus certification
Date Issued: 18th Nov 2010

Conceived back in 2004 and brought to market just a year later, the 80 PLUS initiative is one of many standards introduced in an effort to increase energy efficiency in modern technology. Targeting computer power supplies, it awards PSUs that are able to achieve an energy efficiency of over 80 per cent at varying workloads and a power factor of 0.9 or more at 100 per cent load.

Read More

Green computing at home
Green computing at home
Date Issued: 20th Nov 2008

This TekSpek explains what Green Computing is, what it means to the consumer, and how energy-efficient components can be beneficial in the home.

Read More

850W Corsair RMx Series RM850x, Full Modular, 80 PLUS Gold, SLI/CrossFire, Single Rail, 70.8A, 135mm Fan, ATX PSU is rated 4.8 out of 5 by 4.
Rated 5 out of 5 by from Think twice if this is a D.I.Y. project As you'd expect, the unit does what it says on the tin. In the short time I've had it installed and for the minimal use the computer has had since then, there have been no issues with it. I bought this to replace a TW850X, and the only thing I would say is that unless you're already pretty clued up, I'd think twice before attempting to install it yourself. I consider myself to have probably slightly above what would be considered average knowledge of the inside of a computer, and I ended up calling someone else in to finish the job on the basis that I'd rather pay them now than after I've messed it up. The installation instructions that come with it are pretty basic, and if you're anything less than 100% sure what you're looking at when you open up the computer, may not be enough for you to do it yourself; in fact, ironically, if you were clued up enough to be able to do the installation from the instructions alone, you probably wouldn't need them in any case! Value-wise, at the time I bought this, for some reason, the prices of power units generally seemed to have been hiked up across the board. This was, arguably, one of the less-hiked-up ones, but in my humble opinion, still more expensive than it need have been, for what it is. Delivery, however, was very prompt.
Date published: 2020-08-18
Rated 4 out of 5 by from Its a power supply Having modular cables allows for only using what you need. Not myuch more to say.
Date published: 2020-08-17
Rated 5 out of 5 by from Amazing PSU Amazing Power supply, just connect once and forget about it
Date published: 2020-08-12
Rated 5 out of 5 by from Does exactly what it was designed for I had terrible coil whine on my recently acquired RTX graphics card and someone on a forum stated it may be related to the power supply. I had my doubts but after extensive research this power supply provided the cleanest power. Sure enough, it cured the coil whine so anyone who is putting up with that awful noise should consider upgrading their power supply. Scan was awesome as always. Couldn’t be happier.
Date published: 2019-04-16
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Corsair 850 Watt RM850x 80+ Gold Fully Modular ATX Power Supply/PSU
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Corsair 850 Watt RM850x 80+ Gold Fully Modular ATX Power Supply/PSU