







NZXT C850 ATX 3.1 850W Power Supply
The NZXT C850 ATX 3.1 850W Power Supply is designed to deliver stable and reliable power for high-performance PC builds, featuring 80 PLUS Gold efficiency and a Cybenetics Gold rating. Its fully modular design simplifies cable management and installation, while the modern 12V-2x6 PCIe connector provides dedicated power support for the latest graphics cards. A 135 mm PWM fan with Zero RPM Mode helps maintain efficient and quiet operation during lower workloads.
Key Features:
850W Power Output for high-performance gaming and workstation systems.
ATX 3.1 Standard for compatibility with the latest PC components.
80 PLUS Gold and Cybenetics Gold Efficiency for efficient power delivery.
Fully Modular Cabling for cleaner builds and easier installation.
16-pin 12V-2x6 PCIe Connector for modern graphics cards.
Three 6+2-pin PCIe Connectors for flexible GPU connectivity.
135 mm PWM Fan with a speed of up to 2,300 ±10% RPM.
Zero RPM Fan Mode for reduced noise during low-load operation.
Fluid Dynamic Bearing Fan for reliable and long-lasting operation.
Comprehensive Protection Features including OVP, UVP, SCP, OTP, OPP and OCP.
100,000-Hour MTBF for long-term reliability.
Technical Specifications:
Dimensions
Width: 150 mm
Height: 86 mm
Depth: 160 mm
General
Wattage: 850 W
Form Factor: ATX
ATX Version: 3.1
80 PLUS Rating: Gold
Cybenetics Efficiency: Gold
Cybenetics Noise: A-
Modular: Fully Modular
Materials: Steel, PCB and Plastic
Zero RPM Fan Mode: Yes
Cable Length & Connector Quantity
24-pin ATX Power Cable: 600 mm (1)
4+4-pin CPU Power Cable: 700 mm (1)
8-pin CPU Power Cable: 700 mm (1)
6+2-pin PCIe Power Cable: 650 mm (3)
16-pin (12+4) 12V-2x6 PCIe Cable: 650 mm (1)
SATA Cable: 500 + 150 mm (12)
Peripheral Cable: 500 + 150 mm (4)
AC Input Ratings
Input Voltage: 100–240 Vac
Input Current: 10–5 A
Frequency: 50–60 Hz
DC Output Ratings
+3.3 V and +5 V: 22 A (120 W)
+12 V: 70.83 A (850 W)
5VSB: 3 A (15 W)
Total: 850 W
Energy Efficiency
80 PLUS Rating: Gold
10% Load: 85.8% @ 115 V
20% Load: 89.5% @ 115 V
50% Load: 91.7% @ 115 V
100% Load: 89.2% @ 115 V
Fan Specifications
Size: 135 mm
Type: PWM
Speed: 2,300 ±10% RPM
Airflow: 93.02 CFM (Min.)
Noise Level: 44.5 dBA (Max.)
Bearing: Fluid Dynamic Bearing
Operation
MTBF: 100,000 hours
Operating Temperature: 0–50 °C
Electrical Features
Power Factor Correction: Active @ 0.99
Protections: OVP (Over Voltage), UVP (Under Voltage), SCP (Short Circuit), OTP (Over Temperature), OPP (Over Power), OCP (Over Current)




