Specifications
- Manufacturer: NZXT
- Model: C850 Gold
- Exact part number: PA-8G1BB-US
- Product version: 2022 model
- Maximum output: 850W
- Efficiency certification: 80 PLUS Gold
- Form factor: Standard ATX computer power supply
- Cable design: Fully modular
- Features: Zero RPM fan mode; black housing
Condition
Clean overall exterior with minor signs of normal handling and use. No significant visible dents or damage were observed. Modular connector sockets, cooling fan, and ventilation grille appear intact. Removed from a functioning desktop computer.
Testing and Verification
Testing completed October 11, 2026, in a Windows 11 desktop with an Intel Core i7-12700K processor and NVIDIA GeForce RTX 4070 graphics card. Testing included Prime95 CPU stress testing, FurMark 2 GPU stress testing, and a five-minute simultaneous Prime95/FurMark 2 load test.
The system completed these tests without shutdowns or crashes observed, and the PSU supplied power successfully. Individual modular outputs were not separately tested. Extended endurance testing and electrical diagnostic measurements are not claimed. The 80 PLUS Gold specification is not a claim of an independent electrical certification test performed on this unit.
Included
- NZXT C850 Gold 850W power supply
- One 24-pin ATX motherboard power cable
- One 8-pin CPU power cable
- One PCIe power cable with dual 8-pin outputs
- One SATA power cable
- Four PSU mounting screws
- No original retail box, AC wall power cord, additional modular cables, manuals, or other accessories
Shipping and Handling
Ships within two business days after payment. PSU and cables will be securely packed with protective cushioning to prevent movement during transportation. Tracking provided through .
Other Details
This is the 2022 PA-8G1BB-US model, not a newer ATX 3.1 or SFX version. Only the listed cables are included; this is not a complete factory cable set, and their factory-original provenance has not been established.
Modular PSU cables are not universally interchangeable. Use only cables verified compatible with NZXT PA-8G1BB-US; do not substitute cables from another PSU without verified compatibility. Confirm motherboard, CPU, graphics card, and cable compatibility. A compatible AC power cord is required and is not included. Review all photographs for actual condition.
Returns
Returns are not accepted unless required under the Money Back Guarantee. Please review all photos and read the complete description carefully before purchasing.
