NZXT

NZXT C850 Gold Core power supply unit 850 W 24-pin ATX ATX Black

SKU: PA-8G3BB-UK
£107.99
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Overview

The NZXT Gold Core is an ATX 3.1, fully modular PSU with 80 PLUS Gold and Cybenetics Platinum efficiency, A+/A++ noise rating, and a 12V-2x6 PCIe 5.1 connector. Built for modern GPUs, it delivers clean, quiet power with easy cable management for performance PCs.

- ATX 3.1 Certified, PCIE 5.1 Ready: Supports next-gen GPUs with a dual-color 12V-2x6 connector for safe, stable, and efficient power delivery—ideal for modern NVIDIA graphics cards.
- 80 PLUS Gold & Cybernetics Platinum Efficiency: Delivers energy-efficient, stable performance to reduce heat and power draw, even under demanding loads.
- Whisper-Quiet Operation: Cybenetics noise certified for near-silent performance: A++ for C750 and C850 ( Ready for AMD & NVIDIA GPUs: Compatible with most GPUs using a 12V-2x6 cable or up to three 8-pin PCIe cables.
- FDB Fan with Zero RPM Mode: 135 mm fluid dynamic bearing fan stays quiet and efficient, with Zero RPM mode during light workloads for silent operation.
- Premium 105°C-Rated Capacitors: High-quality components ensure stable, long-lasting performance across a wide range of system loads.
- Fully Modular with Embossed Cables: Use only the cables you need with a clean, compact design and durable, flexible cables for easy routing.
- Built-In Protections & 7-Year Warranty: Includes essential safety features and a dual-colored 12V-2x6 connector rated for 105°C, all backed by a 7-year warranty.

ATX 3.1 & PCIe 5.1 Ready
Meets ATX 3.1 and PCIe 5.1 standards with a 600W 12V-2x6 connector for high-performance GPUs. Delivers stable power with improved efficiency and voltage control — ideal for top-tier NVIDIA and AMD cards under heavy load.

Ready for Any GPU
Supports high-performance GPUs with a 12V-2x6 connector and dual-color housing that shows when the connection is secure. Includes up to three 8-pin PCIe cables for legacy support — offering flexibility across a wide range of powerful NVIDIA and AMD builds.

Quiet When it Counts
135 mm fluid dynamic bearing fan stays silent under light loads with Zero RPM mode—automatically stopping the fan when cooling isn’t needed.

Stable Under Pressure
105°C-rated capacitors deliver steady, reliable power—even under heavy loads.

Fully Modular
Embossed cables with included combs help keep your build and cables clean.

Sized for Easy Builds
150 mm length fits easily in most PC cases, helping keep your build clean and straightforward.

Key features

  • GPU Power: 12V-2x6 (PCIe 5.1) or triple 8-pin PCIe
  • Efficiency Rating: 80 PLUS Gold, Cybenetics Platinum
  • Noise Rating: Cybenetics A++ (<15 dBA)
  • Fan Control: Zero RPM Mode
Power
Total power 850 W
AC input voltage 100 - 240 V
AC input frequency 50/60 Hz
Input current 10 - 5 A
Power Factor Correction (PFC) type Active
Combined power (+3.3V) 120 W
Combined power (+12V) 850 W
Combined power (+5V) 120 W
Combined power (+5Vsb) 15 W
Max output current (+3.3V) 20 A
Max output current (+12V) 70.8 A
Max output current (+5V) 20 A
Max output current (+5Vsb) 3 A
Efficiency 89.33%
Power protection features Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces
Motherboard power connector 24-pin ATX
Motherboard power cable length 60 cm
Number of SATA power connectors 6
SATA power cable length 100,500,800 mm
Peripheral (Molex) power connectors (4-pin) 6
Peripheral (Molex) power cable length 100,500,700 mm
PCI Express power connectors (6+2 pin) 3
PCI Express power connectors (12+4 pin) 1
PCI Express power connectors (12+4 pin) cable length 650 mm
CPU power connector (4+4 pin) Yes
CPU power cable length 70 cm
ATX Power connector (24-pin) Yes
PCI Express connector Yes
Cabling type Fully-Modular
Performance
80 PLUS certification 80 PLUS Gold
Supported motherboard form factors ATX
Purpose PC
Power supply unit (PSU) form factor ATX
ATX version 3.1
Noise level 40.5 dB
Bearing technology FDB
Mean time between failures (MTBF) 100000 h
Design
Product colour Black
Cooling type Active
Fan diameter 13.5 cm
Number of fans 1 fan(s)
Fan speed 0 - 2300 RPM
On/off switch Yes
Operational conditions
Operating temperature (T-T) 0 - 50 °C
Packaging content
Cables included AC, CPU, PCIe, Peripheral (Molex), SATA
Certificates
Certification CE UKCA FCC IC BSMI CB (IEC 62368-1 Ed. 3) RCM KC
Weight & dimensions
Width 150 mm
Depth 150 mm
Height 86 mm
Packaging data
Package type Box

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