NZXT
NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply
Bottom line: The NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply ($149.99 on Amazon as of 2026-10-06): ATX 3.1 compliant for resistance to GPU power spikes; main trade-off: 850W ceiling limits demanding dual-GPU or 600W-plus rigs.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ ATX 3.1 compliant for resistance to GPU power spikes
- ✓ Native 12V-2x6 connector feeds up to 600W to RTX 40 GPUs
- ✓ 80 PLUS Gold plus Cybenetics Gold efficiency certified
- ✓ Fully modular with 100% Japanese capacitors for low ripple
- ✓ 135mm FDB fan is silent in Zero Fan Mode under 50% load
Cons
- ✗ 850W ceiling limits demanding dual-GPU or 600W-plus rigs
- ✗ Only one 12V-2x6 connector restricts multi-GPU wiring
- ✗ White-only finish may clash with all-black builds
- ✗ Gold efficiency tier, not Platinum or Titanium
Manufacturer description
NZXT C850 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 850 Watts - 80 PLUS Gold - 12V-2x6 Connector - Zero Fan Mode - 100% Japanese Capacitors - White
SpecPicks Verdict
SpecPicks scored NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. NZXT's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
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
| Brand | NZXT |
|---|---|
| Wattage | 850 watts |
| Model Name | NZXT C850 Gold ATX 3.1 |
| Unit Count | 1 Count |
| Form Factor | ATX |
| Model Number | PA-8G2BW-US |
| Compatibility | PC |
| Built-In Media | NZXT ATX 3.1 850 Watt 80 Plus Gold Power Supply - White |
| Connector Type | ATX |
| Cooling Method | Air |
| Number of Fans | 1 |
| Output Wattage | 850 |
| Item Dimensions | 6.3 x 5.91 x 3.39 inches |
| Mfr Part Number | PA-8G2BW-US |
| Compatible Devices | Desktop PC |
| Connector Quantity | 12 |
| Power Supply Design | Full Modular |
| Warranty Description | 10 year manufacturer |
| Maximum Input Voltage | 110 volts |
| Minimum Input Voltage | 100 volts_of_alternating_current |
| Full listing title | 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. |
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 listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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