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A black NZXT C850 Gold ATX 3.1 power supply unit from the C Series, with a fully modular design and honeycomb vent, is shown upright on a white background.
The NZXT C850 Gold ATX 3.1 power supply is shown at an angle, highlighting its black finish, modular design, ventilation grid, power switch, socket, and model name against a black background.
The NZXT C850 Gold ATX 3.1 power supply, featuring a black finish, fully modular design, and large honeycomb ventilation grille with a power switch, is displayed on a black background.
Front view of the NZXT C850 Gold ATX 3.1 power supply’s fully modular design, showing labeled ports for motherboard, CPU, PCI-E, peripheral, and SATA cables—plus a warning not to use cables from other ATX 3.1 PSUs.
A black NZXT C850 Gold ATX 3.1 power supply unit with a honeycomb-vented fan grill, model name on the side, and a fully modular design from the NZXT C Series Gold line.
Close-up of a white computer case with the NZXT C850 Gold ATX 3.1 power supply unit installed. The fully modular PSU features honeycomb ventilation, and the removed side panel highlights the efficient layout of this NZXT C Series Gold model.
The NZXT C850 Gold ATX 3.1 power supply features a white finish, fully modular design with cable ports, and a large honeycomb vent on one side for efficient cooling.
A white NZXT C850 Gold ATX 3.1 PSU with ventilation holes, a fully modular design, power switch, and power socket appears on a black background with the product name printed on its side.
The NZXT C850 Gold ATX 3.1 is a white, fully modular power supply for desktop PCs with a large honeycomb ventilation grille, visible power switch and socket, shown against a black background.
The NZXT C850 Gold ATX 3.1 is a white, fully modular PSU with multiple black connectors and clear labels for motherboard, CPU, PCI-E, Peripheral, and SATA ports on its surface.
The NZXT C850 Gold ATX 3.1 power supply features a fully modular design, honeycomb-patterned ventilation grill, cooling fan, and visible NZXT C850 branding on the side and top.
A close-up of the interior of a white computer case shows an NZXT C850 Gold ATX 3.1 power supply installed behind a large white cooling fan, with mesh ventilation and cable management openings visible.

C850 Gold ATX 3.1

5.0
Rated 5.0 out of 5 stars
5.0 Stars (1 Review)

C850 Gold ATX 3.1

Color:Black

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
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
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
100 - 240Vac
10A–5A 50Hz–60Hz
200 - 240Vac
-
3.3V / +5V
22A (120W)
12V
70.83A (850W)
5Vsb
3A (15W)
Total
850W
Rating
80 Plus Gold
10% loading
85.8% @ 115Vac
20% loading
89.5% @ 115Vac
50% loading
91.7% @ 115Vac
100% loading
89.2% @ 115Vac
PF Correction
Active @ 0.99
Protections
OVP / UVP / SCP / OTP / OPP / OCP
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)
MTBF
100,000 hours
Temperature
0 – 50 °C
Width
150 mm
Height
86 mm
Depth
160 mm
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
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)
5.0
Rated 5.0 out of 5 stars
Based on 1 review
100%would recommend this product
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Write a Review (Opens in a new window)
1 review
  • J
    J.H.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    Jul 26, 2025
    Altes System, neues Netzteil

    Bei meinem alten ThinkCentre M92 war das Netzteil ausgefallen. Es ist ein ziemlich alter PC. Nichtsdestoweniger passt das NZXT - Netzteil perfekt - und funktionierte auf Anhieb. Insgesamt macht das Netzteil einen hochwertigen Eindruck, hat anscheinend eingebaute Sicherheits/Schutzschalter und ist im normal-Betrieb nicht zu hören. Perfekt ist das Kabelmanagement - wie gesagt: Auch passend für alte PCs - mit alten / oder sonderbaren ATX-Anschlüssen. Für den Anschluss ans Mainboard brauche ich zwar nach wie vor den Lenovo/ThinkCentre-Adapter - aber das liegt nicht an NZXT, sondern an der proprietären Bauform des Lenovo-Mainboards. Demnächst wird ein aktuelles Board mit neuer IntelCPU angeschafft - Das Netzteil ist optimal darauf vorbereitet. Insofern alles perfekt. Ich wollte diesmal beim Netzteil keinerlei Kompromisse eingehen und wurde belohnt. Der etwas höhere Preis macht sich bezahlt. Es gibt nicht den geringsten Grund zur Klage. Ich kann das Produkt ohne wenn und aber weiterempfehlen. Bestellt über Alternate.de . Lieferschwierigkeiten aufgrund von Trump-Mania. Sonst aber alles Okay.

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