Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 - PCIe 5.1 - Zero RPM - Modular Side Interface -...

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💡 How to pick a power supply
What to look for:
  • Wattage exceeds total system draw by 20-30% headroom
  • 80+ Gold or higher for efficiency
  • Modular cables reduce clutter in your case
💰 Mid-range builds: 650-750W. High-end with RTX 4080+: 850W-1000W+
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ProductWattsRatingModularColorValuePrice
RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 - PCIe 5.1 - Zero RPM - Modular Side Interface -... PSU
RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 - PCIe 5.1 - Zero RPM - Modular Side Interface -...
Corsair★★★★★4.5
850W
Gold
Full
Black
—
$181.99
Specifications
asinB0CWLWGM67
reviews185
UPC840006668251
Model #CP-9020274-NA
Weight3.8 lbs
Watts850W
RatingGold
ModularFull
ColorBlack
value17
Form FactorATX
ATX 3.0Yes
Fan Size135mm
depth160
RGBNo
Fans1
Customer Reviews★★★★★5.0 · 5 reviews
★★★★★Nice fit for my build.
This was a good choice for my build. I used an ASUS BTF motherboard and the cables and BTF orientation of this power supply worked great. All the cables are hidden behind my motherboard and the case looks incredibly clean. The noise level is low, I don't really hear it at all, and certainly not when my fans are running.
R G · 2025-12-16 · via amazon
★★★★★Good
I really like that it came with good quality power cables. It is a superior product. The modular design will make it easy to fit any rig or PC case.
Luke Becker · 2026-05-05 · via amazon
★★★★★Great Power Supply!
Great power supply! I really like the side design of all the power connectors. Fit perfectly with my case and gives enough juice to my RX 9070XT. It does come with plenty of cables, adapters, and the sorts. The build is solid, and the white mat finish is nice. It's whisper quite too.
Mitchell Barta · 2025-05-02 · via amazon
★★★★★Don't trust the reviews, snag this while you can.
So far so good after a few days of usage (Video editing, gaming (high to epic / ultra graphics settings, rendering, archive packing using 7zip, archive extraction of a 30gb MO2 archive), I've been pushing this for a few days now. I was hesitant based on other reviewers saying that it failed within a few days or failed in 1-2 months. This Power Supply is a great value for money, it's modularity is sick and makes things easy to fit and route cables as necessary without the unnecessary and extra bulk. It not only performs well but looks great in my white case as I purchased the white version. If you're in the market, grab this. It came brand new in box, wrapped in plastic so that speaks for itself.
Guru82 · 2025-04-07 · via amazon
★★★★★Consider cable management before buying this.
Amazing product. I only have to warn for people who are considering buying this. This is ideal for a PC where the power supply is lying horizontal. I had a very difficult time managing my wires because it was vertical and at the top back of my pc. Tons of cables though. Instead of the cables connecting on the opposite side of where the power plugs through its on the side.
tonyylee · 2025-07-25 · via amazon
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$181.99
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RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 - PCIe 5.1 - Zero RPM - Modular Side Interface -... PSU