The NZXT C850 Gold (PA-8G2BB-UK) is a fully modular 850W ATX 3.1 power supply with 80 PLUS Gold efficiency, a 135 mm fluid dynamic bearing fan with Zero Fan Mode, and a native 16-pin 12V-2x6 cable for modern graphics cards. It is built for high-performance gaming and workstation PCs that need clean, quiet power.
Key Features
850W output with 80 PLUS Gold and Cybenetics Gold efficiency
ATX 3.1 compliant with a native 16-pin 12V-2x6 cable
Fully modular design: connect only the cables you need for cleaner builds
135 mm fluid dynamic bearing fan with Zero Fan Mode, silent under 50% load
Maximum noise level of 44.5 dBA
Full protection suite: OVP, UVP, SCP, OTP, OPP and OCP
Standard ATX form factor, compact 160 mm depth
10-year manufacturer warranty
Full Specifications
General
Brand
NZXT
Model
C850 Gold ATX 3.1
Part Number
PA-8G2BB-UK
Color
Black
Form Factor
ATX
Power & Efficiency
Wattage
850W
Efficiency
80 PLUS Gold, Cybenetics Gold
Standard
ATX 3.1
Cooling
Fan
135 mm fluid dynamic bearing
Fan Mode
Zero Fan Mode (silent under 50% load)
Maximum Noise
44.5 dBA
Cables & Connectors
Modularity
Fully modular
Main Power
24-pin ATX
CPU Power
Dual CPU cables
PCIe / GPU
1x 16-pin 12V-2x6 and 3x 8-pin PCIe connectors
Storage
3 SATA cables
Peripheral
Peripheral cable
Protection
Protections
OVP, UVP, SCP, OTP, OPP, OCP
Physical
Dimensions
150 (W) x 86 (H) x 160 (D) mm
Warranty
10 years
Who Is It For?
Gamers building a high-end PC with a modern GPU using a 16-pin 12V-2x6 connection
PC builders who want a fully modular, tidy cable layout
Users who value a quiet system thanks to Zero Fan Mode