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Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully… competes with other Power Supplies products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Power Supplies category for alternatives.

Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White, 80 Plus Gold (CP-9020188-NA)

Name: Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White, 80 Plus Gold (CP-9020188-NA)
Brand: Unbranded
SKU: B07JWT8YV3
Price: 109.95 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$109.95

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View Current Price on Amazon → Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-08-28. Price and availability subject to change.

Bottom line: The Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White, 80 Plus Gold (CP-9020188-NA) is a niche pick — read recent reviews before buying in the power supplies category, priced around $109.95. Compare close alternatives before committing.

SpecPicks Verdict

SpecPicks scored Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the power supplies category. Compare with similarly-priced alternatives in the power supplies category before committing. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Fully modular flat cables flexible fully modular flat White cables for Easy cable routing
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

80 plus gold Certified high efficiency operation for lower power consumption less noise and cooler temperatures
Tuned for Low noise operation a specially set fan curve ensures that even at full load fan noise is kept to a minimum
Zero rpm fan mode at Low and medium loads the cooling fan switches off entirely for near-silent operation
100% all Japanese capacitors premium internal components ensure unwavering power delivery and long-term reliability
Fully modular flat cables flexible fully modular flat White cables for Easy cable routing

Full Specifications

Brand	Corsair
Wattage	850 watts
Model Name	RMx
Unit Count	1 Count
Form Factor	ATX12V
Model Number	CP-9020188-NA
Connector Type	ATX, EPS
Cooling Method	Air
Item Type Name	Computer Power Supply
Number of Fans	1
Output Wattage	850
Item Dimensions	6.3 x 5.91 x 3.39 inches
Mfr Part Number	CP-9020188-NA
Number of Items	1
Compatible Devices	Personal Computer
Power Supply Design	Full Modular
Warranty Description	10 years warranty
Maximum Input Voltage	230 volts
Minimum Input Voltage	120 volts
Item dimensions L x W x H	6.3 x 5.91 x 3.39 inches

Ready to buy?

Corsair RMX White Series (2018), RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply - White, 80 Plus Gold (CP-9020188-NA) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-28. Price and availability subject to change.