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CORSAIR – RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply – Black $65.00 Save:$47.00(42%)
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CORSAIR – RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply – Black

in Power Supplies
Sku: 6459244
4.88 (50 Reviews)

$65.00 Save:$47.00(42%)

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Description
  • 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.
  • Zero RPM Fan Mode
    At low and medium loads the cooling fan switches off entirely for near-silent operation.
  • Resonant LLC Topology with DC-to-DC Conversion
    Provides clean, consistent power, reduces coil whine for quieter operation, and enables use of more energy efficient sleep states.
  • Ten-Year Warranty
    Your guarantee of reliable operation that will last across several system builds
Additional information
Weight 60 lbs
Dimensions 150.11 × 160.02 × 86.11 in
Floppy Connector

FALSE
Power Cord Included

Yes
SATA Connector

14
Color

Black
EPS12V Connector

2
Manufacturer's Warranty - Parts

10 years
Wattage

850 watts
Product Weight

60 ounces
Fan/Cooling System Connector

PCI E, ATX
Lighting Type

None
Energy Efficiency

80 PLUS Gold
Number of Fans Included

1
Modular

Fully modular
Overload Protection

Yes
Cooling Fan Type

135mm Magnetic Levitation Fan
Product Width

160.02 millimeters
PCIe Connector

4
Color Category

Black
Cord Length

5 feet
Model Number

CP-9020200-NA
Product Height

86.11 millimeters
Product Name

RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply
Cooling System

Air
Manufacturer's Warranty - Labor

10 years
Brand

CORSAIR
Product Length

150.11 millimeters
Specification Compliance

ATX12V v2.4, EPS12V v2.92
Main Connector

ATX 24-pin
ATX Connector

1x 24-pin ATX (24-pin) Connector. 2x ATX 12V/EPS12V (4+4-pin) Connectors
Peripheral Connector

4
UPC

840006604839
Reviews (50)
Ratings

4.9

50 Product Ratings
5
44
4
4
3
1
2
0
1
0

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Customer Reviews (50)

  1. star –

    it is good one， but is not enough power for my pc and graphic card

  2. FrankG –

    Maybe overkill for my build, but 100% worth the purchase. Best middle-ground power supply and I will never have to stress getting a new one if I decide to upgrade my PC parts. This is one that will last!

  3. CornelioH –

    So it thought I had a 650 in my PC well I forgot that 4 years ago I swapped it for a 750 so when I upgraded my graphics I bought this power supply it was still worth it cause it runs quieter then my old one

  4. WaneP –

    Good 850w psu. Pretty future proof although if I plan to upgrade to the 5000 series once it comes out I’m probably goin to need a 1000w one

  5. AlexR –

    Excellent quality and runs quietly, I expected nothing less from Corsair!

  6. SenhuiZ –

    I used it to replace dead power supply in my Alienware pc tower, it fits in there perfectly. Works great , love it.

  7. RogerG –

    Powers my pc with no issues. I have two monitors up with some lights and 3 different memory cards. Its also quite, i never hear it.

  8. GuillermoZ –

    It’s a really good item, it works fine and its easy to install.

  9. Pijoto –

    Wanted this PSU for the Corsair brand reliability, and 850watts would probably last me forever in terms of Future proofing with PC upgrades. Bought a month ago from this review, no issues as far as I can tell, also the fully modular design makes cable management so much cleaner inside your PC.

  10. RileyM –

    Does great for my i9 7900xt PC. Never had a problem

  11. RobertS –

    Works great. Wish the 24 pin connector was braided. Will probably upgrade this in the future. Nice unit fairly quiet hardly hear it running.

  12. KingAaron –

    Works well with 7800x3d and 7900xtx. No issues and has been a stabile PSU!

  13. VincentS –

    made a big differance with my gameing machine so my system was not starved

  14. Ponkuraq –

    Best investment I made for my PC. I had to purchase the 12VHPWR cable separately but it’s all good. PC been running smoothly since I replaced the power supply it came with for this one.

  15. JHreview –

    great service at the location i picked up from. Ordered a power supply unit online and it was ready for pickup very fast.

  16. Adamjbonham –

    Wonderful Power Supply, suits needs, and has been running for a while, no issues

  17. BrandonS –

    Solid psu. Was pleasantly surprised with how small it was compared to my 750 watt. Made fitments much less of a headache.

  18. Good –

    Works as expected. You get what you pay for. Easy to install

  19. Turner1 –

    The Corsair RMX850x is an excellent power ! you won’t be disappointed with this! worth !!!

  20. user480648 –

    Very satisfied with the product and would order again from BestBuy

  21. Christ –

    Best of a power supply, I’ve been using it for almost a year now and it takes any new parts i throw at it.

  22. JayA –

    Came exactly as advertised, powers my computer properly.

  23. JohnB –

    I installed in my 5900x system with 7900XT. Works great.

  24. Sean –

    Super easy to install and makes no noise at all. Perfect for any modern gaming setup,

  25. Gerardo –

    Great product. Highly recommend anyone in need of a power supply.

  26. BudS –

    This is a good power supply and it was fairly easy to install only took about 30 minutes and my pc was up and running

  27. abcd –

    it works great man ion know what to say it just works fine

  28. KerriM –

    My nephew is building himself a new computer and this CPU was highly recommended!!!

  29. DPurdy –

    Works well and fit in my corsair 4000D with no issues

  30. 420highGuy –

    This power supply works great. It’s fully modular so i got rid of many unnecessary cables in my pc. I just wish there was instructions that should which end of the cables go to PSU and which end to the other components.

  31. DannyB –

    Works great. No complaints here. Had old power supply die and this was easy to swap in.

  32. ZaneM –

    This power supply works great! I’ve had no issues at all.

  33. Steiney –

    Amazing PS for any serious rig with a big graphic card, orks great! The fan is practically silent, but Why can’t the cables included be 2 inches longer? How much more could it possibly cost to include cables that fit a standard ATX gaming case? Instead, everything barely makes it, and any benefits from the nice cables with high-quality mesh shrouds are lost because it just barely fits.

  34. AidC –

    The Psu is good but it no longer fully supports new gen gpus

  35. Braden –

    Excellent PSU. High quality and very easy to install. Good cables, quiet. No issues powering my i7 and RTX 3080.

  36. TracyY –

    geeksquad rocks and best buy treats u with high priority when u have an installion of this part

  37. Zsavage –

    I thought it was going to be hard to install but not to bad the price is good but theres no instruction manual in the box don’t really need one because it’s all labeled

  38. slopez –

    bought this when upping gpu to a 6800xt runs like a dream came with plenty of cables to even run 2 seperate ones to my GPU for max power

  39. ChristianW –

    Works great I never have to worry about my pc shutting off because of not enough power.

  40. Mnzo –

    Bought got my bf pc build. He liked it. Havent installed yet

  41. Melvyn –

    It works. Had in my pc for a couple of years. No problem yet.

  42. FavianB –

    Quiet and love the modular cables to keep my build clean.

  43. BrandonH –

    Corsair is my go to for several components. I have not, nor my friends with the same product, yet had any issues with my Corsair PSU. Great product.

  44. Ethna –

    Works perfectly for my first build and have had no issues thus far, so I am pleased!

  45. NathanS –

    It was easy to install and comes with multiple spare cords to use!

  46. ChrisTF –

    Worked fine, easy to install, no surprises. Also nice are the included zip ties for cable management.

  47. CWHOA –

    I have bought 3 of these now from Best Buy for different pc builds. The product is awesome and over the last x number of years, I have never had a problem with them. They work well with the 13700k and 3080 setup I am using.

  48. Alex –

    Works great from a great brand for in my case and works perfect

  49. CPTDEFF –

    Purchased this item for AM5 build. Could not have asked for a better PSU. Has more than enough cables and connections for any build.

  50. NephilimG –

    I run a RTX3080 and a i9 13900kf off of it and its staying cool even during stress test good quality parts aswell

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