The CORSAIR RM850e is a quiet and efficient fully modular ATX power supply that provides reliable power delivery for versatile PC builds. Its 80 PLUS Gold energy efficiency keeps heat generation in check and the fan operation pleasantly low-key. The power supply supports the latest ATX 3.1 and PCIe 5.1 standards and includes a native 12V-2×6 connector to ensure safe power delivery to modern graphics cards. Modular cabling makes it easy to build a neat and airy system by connecting only the necessary cables. The compact ATX design and high-quality 105 °C capacitors make the RM850e model a durable and versatile solution for both gamers and power users.

Quiet and energy-efficient power supply

The RM850e delivers a total power output of 850 watts, which is sufficient for mid-range and many high-end graphics cards. The 80 PLUS Gold certification guarantees good efficiency, reducing wasted heat and helping keep fan speeds low. High-quality 105 °C industrial-grade capacitors improve the power supply’s reliability over the long term and ensure stable power delivery even under heavy use.

Modular design keeps your build tidy

Fully modular cabling allows for a clean PC build, as the user can connect only the cables needed in the system. This reduces internal cable clutter and improves airflow. The RM850e includes a comprehensive selection of connectors, such as six SATA connectors and two PATA connectors, making it suitable for a variety of setups and hardware requirements.

Compliant with new graphics card standards

The RM850e supports the ATX 3.1 standard and PCIe 5.1 compatibility, making it ready for current and future graphics cards. The included native 12V-2×6 connector enables safe power delivery to PCIe 5 generation graphics cards. Additionally, two 6+2-pin PCIe connectors provide flexibility for connecting other power-hungry devices.

Efficient cooling in a compact size

The power supply features a 12-centimeter fan located on the front panel, combining pleasantly quiet operation with efficient cooling. The RM850e’s dimensions (150 × 86 × 140 mm) make it compatible with most ATX cases. An average failure time of over 100,000 hours indicates long service life and reliable construction.

Features

• Provides quiet and energy-efficient 850-watt power for modern PC builds.
• Modular cabling facilitates neat installation and improves case airflow.
• ATX 3.1 and PCIe 5.1 compatibility with native 12V-2×6 connector support the latest graphics cards.
• High-quality 105 °C industrial-grade capacitors ensure stable and long-lasting performance.
• Quiet 12 cm fan and compact ATX size fit multiple cases.

Package contents

• CORSAIR RM850e modular ATX power supply

Technical specifications

• Total power: 850 W
• AC input voltage: 100–240 V
• AC input frequency: 47–63 Hz
• Input current: 10–5 A
• Combined power (+3.3V): 150 W
• Combined power (+12V): 850 W
• Combined power (+5V): 150 W
• Combined power (+5Vsb): 15 W
• Maximum current (+3.3V): 20 A
• Maximum current (+12V): 62.5 A
• Maximum current (+5V): 20 A
• Maximum current (+5Vsb): 3 A
• Motherboard connector: 24-pin ATX
• SATA connectors: 6
• PATA connectors: 2
• EPS 4+4-pin: Yes
• PCIe 6+2-pin: 2
• PCIe 12+4-pin (12V-2×6): 1
• Cabling: Fully modular
• Standards: ATX, ATX 3.1
• 80 PLUS certification: Gold
• Bearing technology: Rifle
• Mean Time Between Failures (MTBF): 100,000 h
• Cooling: Active, 1 × 120 mm fan
• Fan location: Front
• On/off switch: Yes
• Certifications: CE, RoHS, UKCA
• Color: Black
• Dimensions: 150 mm (width), 86 mm (depth), 140 mm (height)
• Weight: 2.93 kg