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C850 Gold ATX 3.1

C850 Gold ATX 3.1

Sale price$124.99 Regular price$144.99
$20 Off
Color:Black
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Overview

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™ 50 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.
A white NZXT C850 power supply unit with ventilation holes, power switch, and power socket. Below are icons for ATX 3.1, 80 Plus Gold, Cybenetics A-, and a 10-year warranty.

NZXT Gold ATX 3.1 PSU

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

A white NZXT C850 power supply unit with a large cooling fan and honeycomb grille, shown alongside a braided white power cable and connector.

RTX 50 Series Ready

12V-2x6 cable delivers up to 600 watts of power to NVIDIA® GeForce RTX™ 50 Series GPUs.

Close-up of a power supply unit’s modular cable ports, with a magnified section highlighting a 12-pin and 6-pin slot labeled “12V-2x6.” The main panel includes ports for motherboard, CPU, PCIe, SATA, and peripherals.

ATX 3.1 Compliant

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

A line graph titled Efficiency compares energy efficiency of NZXT C850 Gold and 80 PLUS Gold Standard @115V across load percentages. The NZXT C850 Gold peaks at 50% load, showing higher efficiency than the standard.

Certified for High Efficiency & Low Noise

Line graph titled “Noise” shows dBA increasing with percent loading. Noise stays near zero from 0% to 50% loading, then rises sharply, reaching about 30 dBA at 100% loading.

Silence is Golden

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

Open white computer power supply unit showing internal electronic components, including two large capacitors, circuit boards, cooling fins, wiring, and a vented metal casing on a black background.

100% Japanese Capacitors

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

Diagram showing different power supply cables: a peripheral cable (4 connectors), three SATA cables (4 connectors each), a 24-pin ATX cable, two 8-pin CPU cables, two 8-pin PCIe cables, and a 16-pin PCIe cable.

Fully Modular

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

A white computer case with a NZXT C1000 power supply installed, showing a labeled measurement of 160mm in length with a purple arrow.

Space-Saving Size

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

A white NZXT C1000 power supply unit with a honeycomb vent design is shown. Next to it, bold purple text reads 10-YEAR WARRANTY with a green shield and checkmark icon.

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
600 mm with nylon sleeving
4+4-pin CPU Power Cable
700 mm with nylon sleeving
8-pin CPU Power Cable
700 mm with nylon sleeving
6+2-pin PCIe Power Cable
650 mm with nylon sleeving
16-pin (12+4) 12V-2x6 PCIe Cable
650 mm with nylon sleeving
SATA Cable
500 + 150 mm
Peripherals Cable
500 + 150 mm
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 / UVP / SCP / OTP / OPP / OCP
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
Product Info
Model Number (Black)
PA-8G2BB-CN / PA-8G2BB-UK / PA-8G2BB-US / PA-8G2BB-EU / PA-8G2BB-JP / PA-8G2BB-AU
EAN (Black)
5056547204765 (CN) / 5056547204772 (UK) / 5056547204789 (US) / 5056547204796 (EU) / 5056547204802 (JP) / 5056547204819 (AU)
UPC (Black)
810074844833 (CN) / 810074844840 (UK) / 810074844857 (US) / 810074844864 (EU) / 810074844871 (JP) / 810074844888 (AU)
Model Number (White)
PA-8G2BW-CN / PA-8G2BW-UK / PA-8G2BW-US / PA-8G2BW-EU / PA-8G2BW-JP / PA-8G2BW-AU
EAN (White)
5056547206387 (CN) / 5056547206394 (UK) / 5056547206400 (US) / 5056547206417 (EU) / 5056547206424 (JP) / 5056547206431 (AU)
UPC (White)
810074846448 (CN) / 810074846455 (UK) / 810074846462 (US) / 810074846479 (EU) / 810074846486 (JP) / 810074846493 (AU)

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