CORSAIR RM850e Fully Modular Silent ATX Power Supply with 12V-2×6 Cable – ATX 3.1 and PCIe 5.1 Compatible, Cybenetics Gold Efficiency, 105°C-Rated Capacitors

Whether you’re building a new high-performance PC or upgrading your existing setup, the CORSAIR RM850e Fully Modular ATX Power Supply is engineered to deliver stable, quiet, and efficient power to the most demanding systems. With support for the latest ATX 3.1 and PCIe 5.1 standards, it’s the ideal choice for gamers, professionals, and system builders seeking next-gen compatibility and premium reliability.

Next-Gen Ready – ATX 3.1 & PCIe 5.1 Support

The RM850e is fully compatible with the newest ATX 3.1 and PCIe 5.1 standards, ensuring seamless support for the latest GPUs, including NVIDIA RTX 40 Series cards. It includes a 12V-2×6 power cable, giving you a clean, native connection to modern graphics cards and avoiding the need for adapters.

Fully Modular for Clean Cable Management

Say goodbye to cable clutter. With a fully modular design, you can connect only the cables your build needs—reducing case airflow obstruction and simplifying installation. The result? A neater, more efficient system with easier upgrades and maintenance.

Silent Operation with Smart Fan Control

Equipped with a low-noise fan and Zero RPM mode, the RM850e runs completely silent at low and medium loads. This means your system remains whisper-quiet during light workloads or idle, and only ramps up cooling when necessary, extending both fan life and user comfort.

Premium Components, Gold Efficiency

The RM850e is built using 105°C-rated Japanese capacitors for exceptional durability and reliability under high temperatures. It’s Cybenetics Gold certified, offering up to 90% efficiency to reduce energy consumption, heat output, and overall operating costs.

Engineered for Safety and Stability

Multiple protection features are built in, including over-voltage (OVP), under-voltage (UVP), over-power (OPP), short circuit (SCP), and over-temperature protection (OTP). You get consistent, dependable power delivery with peace of mind.

Built for Long-Term Reliability

Backed by Corsair’s trusted engineering, the RM850e is designed to run reliably under full load for years. Its robust internals, efficient airflow, and thermal performance make it an excellent choice for long-term PC performance.

Key Features:

• Wattage: 850W

• Efficiency Certification: Cybenetics Gold

• Modularity: Fully Modular with 12V-2×6 PCIe 5.1 cable included

• Standard Support: ATX 3.1 and PCIe 5.1

• Capacitors: 105°C-rated Japanese capacitors

• Cooling: Low-noise fan with Zero RPM mode

• Protections: OVP, UVP, OPP, OTP, SCP

• Form Factor: ATX

• Compatibility: Supports latest Intel & AMD CPUs, NVIDIA RTX and AMD Radeon GPUs

• Warranty: Corsair limited manufacturer warranty

Who Is It For?

This power supply is ideal for:

• Gamers building a next-gen PC with high-end graphics cards

• PC enthusiasts and modders who want clean, modular builds

• Content creators needing stable power for demanding workloads

• System builders looking for future-ready ATX 3.1 and PCIe 5.1 support

• Users prioritizing quiet performance and energy efficiency

With modern compatibility, premium components, efficient power delivery, and whisper-quiet operation, the CORSAIR RM850e Fully Modular ATX Power Supply is the perfect foundation for high-performance, future-proof PC builds.