Corsair RM850e (2025) White
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Corsair RM850e (2025) White
The Corsair RM850e 2025 power supply, in a white finish, delivers a stable 850W of power for modern PC builds. The manufacturer has designed it with future standards in mind, confirmed by its formal ATX 3.1 certification and full PCIe 5.1 compatibility, making it ready for next-generation hardware components. To simplify organisation and promote optimal airflow in the case, it uses a fully modular cabling system, which allows you to connect only the necessary cables. Its energy conversion efficiency is confirmed by dual 80 PLUS Gold and Cybenetics Gold certifications, which reduce thermal losses and lower running costs. It includes a native 600W 12V-2x6 cable for powering high-performance graphics cards. Quiet operation even under low load is handled by a 120mm fan with a Zero RPM mode, while its compact 140mm depth makes installation easier, even in smaller cases where space for cable management is limited.
850W
Power
ATX
Form factor
80 PLUS Gold
Certification
Fully
Modularity
Key technologies of the Corsair RM850e 2025 power supply, white
- Total power output of 850W
- Meets the ATX 3.1 standard for powering modern components
- Efficiency confirmed by dual 80 PLUS Gold and Cybenetics Gold certifications
- Fully detachable cable system simplifies cable management
- Quiet fan operates with a Zero RPM mode
- Includes a native 12V-2x6 cable
Choosing a power supply
When choosing a suitable PC power supply, besides the form factor, the key parameter is its power output. This indicates the maximum wattage the power supply can continuously deliver to the components in the computer. It's a good idea to use an online calculator to determine the optimal power output based on your chosen components.
Ready for the future
The power supply meets the specifications of the ATX 3.1 standard, which defines its ability to handle high, instantaneous power spikes for high-performance graphics cards and processors. This standard requires the power supply to withstand transient power draws that can briefly exceed its rated output. This design provides stable power even during sudden and very brief changes in load, reducing the risk of unexpected restarts or system instability when gaming or working with demanding applications. The formal certification confirms its readiness for the power demands of current and future components.
Power for modern GPUs
The unit includes a native 12V-2x6 power cable, capable of delivering up to 600W through a single bundle. This connector is used to directly power modern graphics cards, eliminating the need for additional adaptors that can be a source of problems and complicate cable routing. The direct connection reduces the number of joins in the circuit, limits electrical resistance, and simplifies the wiring of key components within the PC case. The result is a cleaner and more reliable build without unnecessary elements in the power path.
Efficient and quiet operation
High energy conversion efficiency is confirmed by 80 PLUS Gold and Cybenetics Gold certifications, which declare minimal energy loss during operation. Lower losses lead to less waste heat production and reduced running costs. Cooling is handled by a 120mm fan with thermal speed control, which, thanks to its Zero RPM mode, remains completely off under low and medium loads. This helps the power supply contribute to the quiet running of the computer during everyday tasks, such as web browsing or office applications, with the fan only activating at higher power draws.
Easy installation and modular cables
The fully modular cabling system lets you connect only the necessary cables to power specific components. This results in fewer obstructing cables in the case, which simplifies assembly and contributes to better airflow around the components. The power supply's compact depth of just 140mm makes installation easier and leaves more room for cable management, even in smaller ATX computer cases where every millimetre is important for a clean and functional build.
Stable power delivery
The internal architecture uses a resonant LLC topology and DC-DC conversion for precise and stable voltage regulation across all rails. The components exclusively include industrial-grade capacitors rated for an operating temperature of up to 105°C, which support reliability even under heavy load. This combination of elements promotes long-term stability of power delivery for sensitive components like the processor and graphics card. The power supply also supports the Modern Standby function, which shortens the system's wake-up time from sleep mode.
Connector options
The power supply offers a set of connectors to power all modern components. In addition to the native 600W 12V-2x6 cable, it includes two separate 8-pin (4+4) CPU connectors for powering high-performance multi-core processors and motherboards. For other peripherals, it offers one PCI-E 8-pin (6+2) connector. It also provides a total of eight connectors for storage devices, split between four SATA and four Molex connectors, which covers the needs of most builds with multiple drives and accessories.
Compact design
With dimensions of 150 × 86 × 140mm, this ATX power supply is one of the more compact units on the market. Its 140mm depth is a parameter that expands compatibility with computer cases. Longer power supplies can interfere with hard drive bays or limit space for cable management, whereas this compact form factor makes assembly and installation easier, leaving more room to work with. This will be appreciated by those building systems in smaller mid-tower cases.
Connectors
- 1× ATX 24-pin
- 2× CPU 8-pin (4+4)
- 4× Molex 4-pin
- 1× PCI-E 8-pin (6+2)
- 4× SATA 15-pin
- 1× 12V-2x6 16-pin
Package contents
- PC power supply unit
- 1× Power cable
- 1× Modular ATX 24-pin
- 2× EPS / ATX 12V 8-pin (4+4)
- 1× 12V-2x6 16-pin (12+4)
- 1× 12V-2x6 to Dual PCIe 8-pin (6+2)
- 1× PCIe 8-Pin (6+2)
- 1× SATA (4 Straight SATA)
- 1× SATA / PATA (2 Straight SATA / 2 Straight PATA)
80 Plus certification on the European market
80 Plus certification was created to objectively evaluate the efficiency of computer power supplies. This provides users with a simple and clear way to compare different models. On the European market (where a 230V voltage is used), there are six levels of 80 Plus certification, each with set requirements for PC power supplies. Higher energy efficiency primarily means lower energy consumption.
| PC power supply load | Efficiency at 20% load | Efficiency at 50% load | Efficiency at 100% load |
|---|---|---|---|
| 80 PLUS | 82% | 85% | 82% |
| 80 PLUS Bronze | 85% | 88% | 85% |
| 80 PLUS Silver | 87% | 90% | 87% |
| 80 PLUS Gold | 90% | 92% | 89% |
| 80 PLUS Platinum | 92% | 94% | 90% |
| 80 PLUS Titanium | 94% | 96% | 94% |
Specifications
Performance and format
Equipment
Efficiency
Connectors
Cooling system
Dimensions
| Code: | UY006rmew5a |
| Warranty: | 84 months |
| Links: | Producer's Website: |