Corsair
Power Supply
Corsair RM850x (2024) 80+ Gold
Key Features
Zero RPM Mode
Japanese Capacitors
Fully Modular
MSRP:
$139
Technical Specifications
Manufacturer
Corsair
MSRP
$139
Type
ATX
Wattage
850 W
Efficiency Rating
80 PLUS Gold
Modular
Yes
Color
Black
Fanless
No
Dimensions
160mm x 150mm x 86mm
Length
160 mm
Connectors
Atx 4 Pin: 0 • Eps 8 Pin: 2 • Pcie 16 Pin 12Vhpwr: 1 • Pcie 12 Pin: 0 • Pcie 8 Pin: 0 • Pcie 6 Plus 2 Pin: 3 • Pcie 6 Pin: 0 • Sata: 8 • Amp Molex 4 Pin: 3
Release Year
2024
Pros & Cons
Pros
- Excellent 850W capacity for high-end gaming with RTX 4080/4090 class GPUs
- Provides comfortable headroom for overclocking
- Fully modular design enables custom cable configurations
- Reduces cable clutter and improves airflow significantly
- Good 80 PLUS Gold efficiency provides reliable power delivery
- Premium brand known for exceptional build quality and reliability
- PCIe 5.0 connector ready for next-generation GPUs
- Future-proof connectivity for RTX 5000 series and beyond
Cons
- Longer 160mm depth may not fit in compact cases
Community Insights
- One of the most common positive discussions centers around the RM850x’s near-silent operation, even under moderate loads. Users frequently praise its fan’s “zero RPM mode” and the overall reliability, with many reporting years of trouble-free use and stable voltages, making it a favorite among both gamers and PC enthusiasts.
- Another popular topic is the fully modular cable design, which users find excellent for cable management and building clean-looking systems. The quality of the included cables and the compact size of the unit also receive frequent praise in community reviews and forums.
Frequently Asked Questions
Is the Corsair RM850x (2024) compatible with the latest graphics cards (e.g., RTX 40 series)?
Yes, the RM850x (2024) comes with PCIe 5.0/12VHPWR support and includes the necessary cables for modern GPUs, including the RTX 40 series.
What is the warranty period for the Corsair RM850x (2024)?
The RM850x (2024) is backed by a 10-year warranty from Corsair, which is frequently cited as a reason for purchasing due to the company’s strong customer service and RMA process.
Performance Guide & Use Cases
Best For
High-end gaming with RTX 4080/4090 class GPUs (850W)
Content creation and workstation builds (850W)
Next-generation GPUs and future-proofing (PCIe 5.0)
RTX 5000 series and modern GPU compatibility
Standard ATX builds and mainstream systems
Custom cable management and clean builds (modular)
Overkill Scenarios
Budget gaming systems with entry-level GPUs (850W)
Office productivity without high-performance components (850W)
Basic web browsing and document editing systems
Media streaming and light productivity tasks
Avoid For
Mini-ITX and compact case builds (ATX too large)
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