Corsair RM850e, 850 Watts, 80 PLUS Gold, PCIe 5.1 Ready

The Corsair RM850e power supply delivers 850W of steady, reliable power for gaming and productivity systems. Certified for the latest ATX 3.1 standard and featuring PCIe 5.1 compatibility, the RM850e supports modern GPUs like NVIDIA GeForce RTX 40 Series.

With 80 PLUS Gold efficiency, a fully modular design, and Zero RPM fan mode for silent operation, this PSU is compact, future-proof, and built for high-performance builds.

Key Features

• Wattage: 850W continuous power, perfect for high-performance gaming PCs and demanding workstations.
• Efficiency Rating: 80 PLUS Gold and Cybenetics ETA Gold certified, offering up to 90% efficiency for reduced heat and energy waste.
• ATX 3.1 Certified: Complies with modern power standards for reliability and efficiency.
• PCIe 5.1 Support: Includes a PCIe 12VHPWR 12V-2×6 cable for next-gen GPUs, ensuring compatibility with NVIDIA GeForce RTX 40 Series and more.
• Modular Design: Fully modular cables for clean builds with only the cables you need.
• Low Noise Operation: Zero RPM Fan Mode for silent operation at low loads and a low-noise fan curve for quieter performance.
• Advanced Technology: Features robust LLC topology with DC-DC conversion and 105°C-rated industrial-grade capacitors for superior durability and stability.
• Compact Design: 140mm length for easier installation and better cable space in tight cases.
• Durability: Rated for 100,000 hours MTBF and backed by a 7-year warranty for long-term reliability.

Corsair RM850e Power Supply Specifications

• Brand: Corsair
• Model: RM850e
• Part Number: CP-9020263
• Wattage: 850W continuous output
• Efficiency Certifications: 80 PLUS Gold, Cybenetics ETA Gold and LAMBDA A- Noise
• Modular Type: Fully Modular
• Input Voltage: 100-240V AC
• Input Frequency Range: 47-63Hz
• PFC: Active PFC
• Fan Size and Type: 120mm, Low-Noise with Zero RPM Mode
• Protections: OVP, UVP, SCP, OPP, OTP
• Connectors:
  • Motherboard: 1 x 24-pin ATX
  • CPU/EPS: 2 x 4+4-pin EPS12V
  • PCIe: 3 x 6+2-pin PCIe, includes 1 PCIe 5.1 12VHPWR cable
  • SATA: 7 x SATA connectors
  • Peripheral (Molex): 4 x PATA connectors
• Dimensions: 140mm x 150mm x 86mm
• MTBF: 100,000 hours at 25°C
• Warranty: 7 Years

Processor Compatibility

The RM850e supports high-performance multi-core CPUs, including Intel Core i9 and AMD Ryzen 9 series. Dual EPS connectors ensure stable power delivery for modern motherboards used in gaming or workstation builds.

Graphics Card Compatibility

The Corsair RM850e Power Supply is tailored for high-performance GPUs, making it an ideal choice for powering modern and power-hungry graphics cards. Its ATX 3.1 certification ensures compatibility with the latest PCIe 5.1 standards, supporting the NVIDIA RTX 40 Series GPUs. The PCIe 12V-2×6 connector guarantees a clean and steady power delivery to demanding GPUs. Below is a list of GPUs that work seamlessly with this PSU:

Compatible GPU

• NVIDIA RTX 4080
• NVIDIA RTX 4070 Ti 12GB (e.g., MSI RTX 4070 Ti Gaming X Slim)
• NVIDIA RTX 4060 Ti (ASUS Dual GeForce RTX 4060 Ti OC)
• AMD Radeon RX 7900 XTX
• AMD Radeon RX 7800 XT
• Sapphire Radeon RX 7700 XT
• RTX 3060 Ti & 3070 Series

Its 850W power capacity and 80 PLUS Gold efficiency rating ensure stable performance during intensive gaming or productivity tasks.

Motherboard Compatibility

The RM850e power supply is fully modular and compact, making it a suitable choice for a variety of modern motherboards, including those supporting high-end CPUs. Its dual 4+4 EPS connectors provide the power required for overclocking-ready and multi-core processor systems. Compatible motherboards include:

AMD-Based Motherboards

• MSI MAG B650M MORTAR WIFI
• Gigabyte B650 AORUS PRO AX
• ASRock X670E STEEL LEGEND

Intel-Based Motherboards

• ASUS TUF GAMING Z790-PLUS WIFI
• MSI PRO Z790-P WIFI DDR5
• Gigabyte Z790 AORUS ELITE AX

With its fully modular design, cable management becomes simple and clean, enhancing airflow in high-performance builds.

Energy Efficiency

The 80 PLUS Gold and Cybenetics ETA Gold certifications guarantee up to 90% efficiency under typical loads, reducing heat and energy waste for a cooler, more efficient system.

Cooling and Noise Level

The RM850e features a Zero RPM Fan Mode for silent operation during low loads. The optimized fan curve minimizes noise even at higher loads, ensuring quiet and efficient cooling.

Is the Corsair RM850e for You?

The Corsair RM850e is a top-tier PSU for high-performance systems. With 850W output, ATX 3.1 certification, PCIe 5.1 compatibility, and a fully modular design, it’s perfect for gamers, creators, and professionals seeking a future-proof power solution.