Gold Series

C850 Gold ATX 3.1

C850 Gold ATX 3.1

850 Watt 80 PLUS Gold Fully Modular ATX 3.1 PSU

Configure

Color:

Matte White

Buy

Shop with our partners

View all retailers
Shop Refurbished Components

Warranty Policy: NZXT Warranty

Have questions?

Our experts are ready to help.

Chat Now
customer support

Overview

Details

Designed for maximum performance with minimal noise, NZXT C Series Gold ATX 3.1 PSUs are ready to fuel the demands of top-tier GPUs and CPUs.

  • Compliant with the ATX 3.1 standard to fuel high-performance PC components with stability, efficiency, and power spike resistance.
  • Durable, heat-resistant 12V-2x6 connector pumps up to 600 watts to NVIDIA® GeForce RTX™ 40 Series graphics cards.
  • 135mm fluid dynamic bearing fan with Zero Fan Mode is completely silent when under 50% load.
  • 100% premium Japanese capacitors improve hold-up time and minimal ripple noise, ensuring reliable and stable power delivery.
  • Fully modular design allows for only connecting essential cables, reducing clutter for better airflow and a neater build.
  • Compact form factor frees up valuable room for cable management and more case airflow.
  • Thanks to high-quality construction and rigorous product testing, NZXT PSUs are backed by a 10-year warranty.

Inside the Box

  • C850 Gold1

  • 24-Pin ATX Power Cable1

  • 4+4-pin CPU Power Cable1

  • 8-pin CPU Power Cable1

  • 6+2-pin PCIe Power Cable3

  • 16-pin (12+4) 12V-2x6 PCIe Cable1

  • SATA Cable3

  • Peripherals Cable1

  • 6-32 Screws4

  • AC Power Cord1

NZXT Gold ATX 3.1 PSU

ATX 3.1 compliant PSUs featuring high efficiency, low noise, and premium construction.

ATX 3.1 Compliant

ATX 3.1 powers high-performance components with stable delivery and improved efficiency.

40 Series Ready

12V-2x6 cable delivers up to 600 watts of power to NVIDIA® GeForce RTX™ 40 Series GPUs.

Certified for High Efficiency & Low Noise

80 PLUS Gold Efficiency, Cybenetics Gold Efficiency, and Cybenetics A- Noise Level Ratings.

Silence is Golden

135mm FDB fan with Zero Fan Mode stops spinning under 50% load for total silence.

100% Japanese Capacitors

Improved hold-up time and reduced ripple noise for stable, reliable power delivery.

Fully Modular

Only connect the cables needed to keep a tidy build. Full cable set included.

Space-Saving Size

Compact form factor frees up room for cable management and improved airflow.

Peace of Mind

Backed by a 10-year warranty and reliable customer support.

Tech Specs

Output Connectors

  • 24-pin ATX Power Cable:1

  • 4+4-pin CPU Power Cable:1

  • 8-pin CPU Power Cable:1

  • 6+2-pin PCIe Power Cable:3

  • 16-pin (12+4) 12V-2x6 PCIe Cable:1

  • SATA Cable:12

  • Peripherals Cable:4

Cable Specs

  • 24-pin ATX Power Cable:600mm with nylon sleeving

  • 4+4-pin CPU Power Cable:700mm with nylon sleeving

  • 8-pin CPU Power Cable:700mm with nylon sleeving

  • 6+2-pin PCIe Power Cable:650mm with nylon sleeving

  • 16-pin (12+4) 12V-2x6 PCIe Cable:650mm with nylon sleeving

  • SATA Cable:500 + 150mm

  • Peripherals Cable:500 + 150mm

AC Input Rating

  • 100 - 240Vac:10A-5A 50Hz-60Hz

  • 200 - 240Vac:-

DC Output Rating

  • 3.3V / +5V:22A (120W)

  • 12V:70.83A (850W)

  • 5Vsb:3A (15W)

  • Total:850W

Energy Efficiency

  • Rating:80 Plus Gold

  • 10% loading:85.8% @115Vac

  • 20% loading:89.5% @115Vac

  • 50% loading:91.7% @115Vac

  • 100% loading:89.2% @115Vac

Electrical Features

  • PF Correction:Active @0.99

  • Protections:OVP (Overvoltage Protection) / UVP (Undervoltage Protection) / SCP (Short Circuit Protection) / OTP (Over Temperature Protection) / OPP (Overpower Protection) / OCP (Overcurrent Protection) /

Fan Specs

  • Dimensions:135 x 135 x 25 mm

  • Speed:2300 ± 10% RPM

  • Airflow:93.02 CFM (Min.)

  • Noise:44.5 dBA max

  • Bearing:Fluid Dynamic Bearing (FDB)

Operation

  • MTBF:100,000 hours

  • Temperature:0 - 50 °C

Dimensions

  • Width:150 mm

  • Height:86 mm

  • Depth:160 mm

General

  • Material(s):Steel, PCB and Plastic

  • Compliance Standard:ATX12V v3.1 / EPS12V v2.92

  • Regulation & Certification:FCC, Canada, CE, CB(IEC 62368-1), UKCA, CCC, BSMI, BIS, RCM, UAE, TUV, cTUVus, KC, CP65

  • Warranty:10 Years

  • Model Number (Black):PA-8G2BB-CN / PA-8G2BB-UK / PA-8G2BB-US / PA-8G2BB-EU / PA-8G2BB-JP / PA-8G2BB-AU /

  • Model Number (White):PA-8G2BW-CN / PA-8G2BW-UK / PA-8G2BW-US / PA-8G2BW-EU / PA-8G2BW-JP / PA-8G2BW-AU

  • EAN (Black):5056547204765 (CN) / 5056547204772 (UK) / 5056547204789 (US) / 5056547204796 (EU) / 5056547204802 (JP) / 5056547204819 (AU) /

  • EAN (White):5056547206387 (CN) / 5056547206394 (UK) / 5056547206400 (US) / 5056547206417 (EU) / 5056547206424 (JP) / 5056547206431 (AU)

  • UPC (Black):810074844833 (CN) / 810074844840 (UK) / 810074844857 (US) / 810074844864 (EU) / 810074844871 (JP) / 810074844888 (AU) /

  • UPC (White):810074846448 (CN) / 810074846455 (UK) / 810074846462 (US) / 810074846479 (EU) / 810074846486 (JP) / 810074846493 (AU)

Questions And Answers

Downloads

Documentation

Download C Series Gold ATX 3.1 Digital Manual (Multi-language) pdf

C Series Gold ATX 3.1 Digital Manual (Multi-language)

3.7 MB(pdf)

NZXT CAM

Manage performance, temperatures, and devices all from a single application.

Free Download

Windows 10 64BIT/Windows 11

Help & Support

Get extensive guides and support for all your NZXT products as well as help for warranties, return and anything technical

Help and Support