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NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850W 80 PLUS Gold ATX 3.1 PSU, fully modular and quiet. PCIe 5 ready for modern GPUs, backed by a 10-year warranty.
NZXT

C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850W 80 PLUS Gold ATX 3.1 PSU, fully modular and quiet. PCIe 5 ready for modern GPUs, backed by a 10-year warranty.

By SpecPicks Editorial · Verified 2026-08-21

$119.99
Buy on Amazon — $119.99 Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

Bottom line: The C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850W 80 PLUS Gold ATX 3.1 PSU, fully modular and quiet. PCIe 5 ready for modern GPUs, backed by a 10-year warranty. is a niche pick — read recent reviews before buying in the power supplies category, priced around $119.99. Read recent reviews carefully before committing.

NZXT C850 Gold ATX 3.1 (PA-8G2BB-US) - Fully Modular Low-Noise PC Gaming Power Supply - 850 Watts - 80 PLUS Gold - 12V-2x6 Connector - Zero Fan Mode - 100% Japanese Capacitors - Black

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SpecPicks Verdict

SpecPicks classifies NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850W 80… as a niche pick — read recent reviews before buying in the power supplies category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. NZXT's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

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

  • ✓ Backed by NZXT's warranty and support channels
  • ✓ 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

  • ATX 3.1 — Compliant with the ATX 3.1 standard to fuel high-performance PC components with stability, efficiency, and power spike resistance.
  • 40 SERIES READY — Durable, heat-resistant 12V-2x6 connector pumps up to 600 watts to NVIDIA GeForce RTX 40 Series graphics cards.
  • HIGH EFFICIENCY, LOW NOISE — Awarded certifications of 80 PLUS Gold Efficiency, Cybenetics Gold Efficiency, and Cybenetics A- Noise Level.
  • ULTRA-LOW NOISE FAN — 135mm fluid dynamic bearing fan with Zero Fan Mode is completely silent when under 50% load.
  • HIGH-QUALITY CONSTRUCTION — 100% premium Japanese capacitors improve hold-up time and minimal ripple noise, ensuring reliable and stable power delivery.

Full Specifications

BrandNZXT
Wattage850 watts
Fan Size13.5 centimeters
Model NameNZXT C850 Gold ATX 3.1
Unit Count1 Count
Form FactorATX
Model NumberPA-8G2BB-US
CompatibilityPC
Built-In MediaNZXT PS PA-8G2BB-US 850W ATX3.1 80Plus Gold Fully Modular Black Retail
Connector TypeATX
Cooling MethodAir
Number of Fans1
Output Wattage850
Item Dimensions6.3 x 5.91 x 3.39 inches

Ready to buy?

NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850W 80 PLUS Gold ATX 3.1 PSU, fully modular and quiet. PCIe 5 ready for modern GPUs, backed by a 10-year warranty. 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.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-08-21. Price and availability subject to change.

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NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850W 80 PLUS Gold ATX 3.1 PSU, fully modular and quiet. PCIe 5 ready for modern GPUs, backed by a 10-year warranty.
$119.99
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