Corsair RM850e RMe Series 850W 80 PLUS Gold Fully Modular Low‑Noise ATX Power Supply PSU

The Corsair RM850e 850W Power Supply delivers stable, efficient power for gaming, creative workstations, and productivity rigs that demand reliable electrical performance. With its 80 PLUS Gold certified design, this fully modular PSU maintains up to ~90% efficiency under typical loads, reducing energy waste and heat generation for cleaner operation.

High‑Efficiency Power Delivery

The Corsair RM850e 850W Power Supply uses advanced resonant LLC topology with DC‑to‑DC conversion and industrial‑grade capacitors to produce consistent +12V output and stable voltage across all rails. This helps prevent system instability under load and supports modern CPUs and graphics cards with robust power delivery.

Fully Modular Design for Clean Builds

This PSU is fully modular, allowing you to connect only the cables your system needs — reducing clutter and improving airflow. Its ATX 3.1 compliance and PCIe 5.1 readiness support next‑generation GPU power standards, making it a future‑ready choice for high‑end builds.

Low‑Noise Cooling and Durable Components

Equipped with a 120mm rifle bearing fan and Zero RPM Fan Mode, the Corsair RM850e operates quietly during low to moderate loads, only spinning up as needed for cooling under heavier workloads. The PSU includes protections such as over‑voltage and short‑circuit safeguards to help defend your system reliably.

SPECIFICATIONS

• Brand: Corsair
• Series: RMe Series
• Model: RM850e
• Part Number / SKU: CP‑9020249‑WW / CP‑9020263‑IN
• Power Output: 850 Watts Continuous
• Efficiency: 80 PLUS Gold Certified (~90%)
• ATX Standard: ATX 3.1 Compatible
• PCIe Standard: PCIe 5.1 Ready
• Fan: 120mm Rifle Bearing Fan with Zero RPM Mode
• Topology: Resonant LLC + DC‑to‑DC Conversion
• Capacitors: 105°C Industrial‑Grade Capacitors
• Input Voltage: 100‑240V AC, 47‑63Hz
• Protections: OVP, OPP, UVP, SCP, OTP (Typical Modern PSU Protections)
• Connectors:
• 1 × 24‑pin ATX
• 2 × EPS 12V (8‑Pin)
• 3 × PCIe 8‑Pin (6+2) (Includes 12V‑2×6 Cable)
• ~7 × SATA Power
• ~4 × PATA 4‑Pin
• Floppy Adapter (Varies)
• Dimensions: 140 × 150 × 86 mm
• MTBF: ~100,000 Hours
• Weight: ~2.7‑2.9 kg