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NZXT C850 SFX Gold 850W 80+ Gold Certified Fully Modular ATX 3.1 Power Supply Unit

SKU: NZPS8G1BBUS MFR: PS-8G1BB-US
$176.24
$199.99
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Key Features

  • Experience stable, efficient power with 850W output, perfect for high-performance gaming PCs.
  • Achieve peak system efficiency with 80+ Gold certification, reducing energy waste and heat.
  • Simplify your build with fully modular cables, ensuring a clean aesthetic and improved airflow.
  • Enjoy quiet operation thanks to the Zero RPM fan mode, ideal for silent computing during light loads.
  • Trust in NZXT's brand reliability, backed by a 10-year limited warranty for peace of mind.
  • The compact SFX form factor seamlessly fits into smaller cases, expanding your build possibilities.
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Review Summary

NZXT C850 SFX Gold Specifications

General

General

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  • Wattage

    850W

  • Form Factor

    SFX

  • ATX Version

    3.1

  • 80 PLUS Rating

    Gold

  • Cybenetics Efficiency

    Platinum

  • Cybenetics Noise

    A-

  • Modular

    Fully modular

  • Capacitors

    All 105 Degree C (221 Degree F) rated Japanese

  • Cable Type

    Individually embossed with cable comb

  • Compliance Standard

    ATX12V v3.1 / EPS12V v2.92

  • Country Of Origin

    China

Cable Length & Connector

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  • Connectors

    1x 24-pin ATX Power Cable (350mm)
    1x 4+4-pin CPU Power Cable (470mm)
    1x 6+2-pin PCIe Power Cable (470mm)
    2x 16-pin (PSU) to dual 8-pin (6+2) PCIe power cable (470mm)
    1x 16-pin (12+4) 12V-2x6 PCIe power cable (470mm)
    6x SATA Power Cables (100 + 100 + 100mm)
    3x Peripherals Cable (100 + 100 + 100mm)

AC Input Rating

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  • Voltage

    100 - 240 Vac

  • Current

    10 - 5 A

  • Frequency

    50 - 60 Hz

DC Output Rating

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  • +3.3 V and +5 V

    20 A (100W)

  • +12 V

    70.83 A (850W)

  • 5VSB

    3 A (15W)

  • Total

    850W

Energy Efficiency

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  • 80 PLUS Rating

    Gold

  • 20% Load

    91.1% @ 115 V

  • 50% Load

    92.1% @ 115 V

  • 100% Load

    89.2% @ 115 V

  • Type

    PWM

  • Speed

    3,500 +/- 10% RPM

  • Airflow

    57 CFM

  • Noise Level

    41 dBA

  • Bearing

    Fluid dynamic bearing

  • Zero RPM Fan Mode

    Yes

  • Size

    3.6" (92mm)

Operation

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  • MTBF

    100,000 hours

  • Temperature

    32 - 122 Degree F (0 - 50 Degree C)

Electrical Features

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  • PF Correction

    Active @ 0.97

  • Protections

    OVP (Over Voltage Protection), UVP (Under Voltage Protection), SCP (Short Circuit Protection), OTP (Over Temperature Protection), OPP (Over Power Protection), OCP (Over Current Protection)

Certification

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  • Regulation & Certification

    CE, UKCA, FCC, IC, BSMI, CB (IEC 62368-1 Ed. 3), LVD (EN 62368-1 Ed. 2), KC

Physical

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  • Dimensions (W x H x D)

    4.9 x 2.5 x 3.9" (125 x 63.5 x 100mm)

  • UPC Code

    810074847414

About NZXT C850 SFX Gold

The C850 SFX Gold is an efficient, compact solution built for your small form factor (SFF) setup. It's fully ATX 3.1 compliant and includes a 600W 12V-2x6 connector, ensuring steady performance for demanding graphics cards. Experience stable, quiet, and cool power delivery, all within a tiny footprint.

Power, Perfectly Compact
Experience focused power in minimal spaces with the C850 SFX Gold, delivering 80 PLUS Gold efficiency and ATX 3.1 reliability. Designed specifically for small yet powerful builds, it is the essential, capable core of your system.

Made For Smaller Cases
The SFX form factor slides easily into the smallest cases, offering dependable, high-output power without taking up unnecessary room.

Ready for Great Builds
With ATX 3.1 and PCIe 5.1 support, power is prepared for today and the future. Includes a 600W 12V-2x6 cable to reliably power demanding graphics cards.

Efficient Power Delivery
80 PLUS Gold certification and Cybenetics Platinum rating mean less wasted energy and cooler operation. Efficient power is smart power.

Premium Japanese Capacitors
Built with 100% Japanese capacitors rated to 105 Degree C for consistent, long-term performance and reliability that lasts for years.

Simple, Clean Connections
Fully modular, embossed all-copper cables let you connect only what you need, while included PSU cable combs keep runs clean, aligned, and organized.

Whisper-Quiet Cooling
A 92 mm fluid dynamic bearing fan with Zero RPM mode and A- Cybenetics noise rating keeps cooling near-silent and consistent under any load.

Safe, Stable, Secure
Build and use with confidence. A full set of safety features ensures performance is reliable and worry-free.

NZXT C850 SFX Gold Features

  • Designed for Compact Builds: Maximize your space efficiency with the SFX form factor, delivering full power capabilities in a size optimized for small form factor (SFF) cases
  • Reliable GPU Power: ATX 3.1 certification and a 600W 12V-2x6 connector ensure safe, dependable power delivery for modern graphics cards
  • Premium Efficiency, Quiet Operation: 80 PLUS Gold & Cybenetics Platinum efficiency ratings mean less heat is generated, while Cybenetics A- noise rating ensures a quieter overall system
  • Uninterrupted System Performance: Low ripple noise, tight voltage regulation, and long hold-up time help protect your components and keep your system running smoothly
  • Silent Cooling with FDB Fan: A 92mm fluid dynamic bearing (FDB) fan offers durable and efficient cooling, featuring a Zero RPM mode for silent operation
  • Enhanced Durability and Stability: Constructed with 105 Degree C-rated Japanese capacitors, guaranteeing long-term reliability and stable performance especially during heavy workloads
  • Simplify Cable Management: Fully modular design with embossed cables and included combs allows you to connect only the essentials, improving routing in tight builds
  • Built for Safety and Longevity: A full suite of safety protections and rigorous stress testing help safeguard your PC, all backed by a 10-year warranty for long-term peace of mind

Warranty Information

This product has a limited warranty of 120 months.

Key Features

  • Experience stable, efficient power with 850W output, perfect for high-performance gaming PCs.
  • Achieve peak system efficiency with 80+ Gold certification, reducing energy waste and heat.
  • Simplify your build with fully modular cables, ensuring a clean aesthetic and improved airflow.
  • Enjoy quiet operation thanks to the Zero RPM fan mode, ideal for silent computing during light loads.
  • Trust in NZXT's brand reliability, backed by a 10-year limited warranty for peace of mind.
  • The compact SFX form factor seamlessly fits into smaller cases, expanding your build possibilities.

What's in the box:

  • NZXT C850 SFX Gold 850W 80+ Gold Certified Fully Modular ATX 3.1 Power Supply Unit
  • 24-Pin ATX Power Cable
  • 4+4-Pin CPU Power Cable
  • 6+2-Pin PCIe Power Cable
  • 16-Pin (PSU) to Dual 8-Pin (6+2) PCIe Power Cable
  • 16-Pin (12+4) 12V-2x6 PCIe Power Cable
  • 2x SATA Power Cable
  • Peripherals Cable
  • 4x 6-32 Screw
  • AC Power Cord
  • NZXT 10 Year Limited Warranty