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POWER SUPPLY · VERIFIED EXACT-MODEL PROFILE

Corsair
RM850x (ATX 3.1 · CP-9020270-NA)

850 W, fully modular Type 4, ATX 3.1/PCIe 5.1, native 12V-2x6 cable, 160 × 150 × 86 mm, Zero RPM mode and 10-year warranty.

Reference: Verified exact model
Corsair RM850x (ATX 3.1 · CP-9020270-NA)
MODEL PHOTOExact model shown
Best forA strong single-GPU system whose complete calculated load leaves healthy headroom.
Main limitChoosing only from the GPU name while ignoring CPU limits, transients, connectors and case length.
Check firstConfirm CP-9020270-NA; older RM850x revisions use different ATX standards, dimensions and cable packages.
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VERIFIED MANUFACTURER SHEET

Exact-model facts and limits

Confirmed facts

850 W, fully modular Type 4, ATX 3.1/PCIe 5.1, native 12V-2x6 cable, 160 × 150 × 86 mm, Zero RPM mode and 10-year warranty.

Compatibility to confirm

Confirm CP-9020270-NA; older RM850x revisions use different ATX standards, dimensions and cable packages.

Official manufacturer sourcesOfficial source 1 →Official source 2 →

FAQ

Questions before buying this model

Who is the Corsair RM850x (ATX 3.1 · CP-9020270-NA) best for?

A strong single-GPU system whose complete calculated load leaves healthy headroom.

Who should compare another option?

Choosing only from the GPU name while ignoring CPU limits, transients, connectors and case length.

What should you compare before choosing?

Compare exact cable set, native GPU connector, dimensions, warranty and regional SKU—not the efficiency badge alone.

What must be verified before buying?

Confirm CP-9020270-NA; older RM850x revisions use different ATX standards, dimensions and cable packages.

A question about this product?

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