Corsair
Corsair CP-9020178-UK RM650x 650W Gold Power Supply
★★★★★
650W80 PLUS Gold
Efficient and Quiet Power for Your PC The Corsair RM650x Series power supply delivers 80 PLUS Gold efficiency with premium components for reliable performance. Featuring Japanese 105°C capacitors, a Zero RPM mode for silent operation, and fully modular cables for easy builds, this PSU is designed...
$132.02*
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*Price sourced from Amazon.com. Last updated:Jun 17, 2026.Price and availability are subject to change.
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Overview
Efficient and Quiet Power for Your PC
The Corsair RM650x Series power supply delivers 80 PLUS Gold efficiency with premium components for reliable performance. Featuring Japanese 105°C capacitors, a Zero RPM mode for silent operation, and fully modular cables for easy builds, this PSU is designed to power your high-performance PC for years to come.
Specifications:
- Wattage: 650W
- Efficiency: 80 PLUS Gold
- Modularity: Fully Modular
- Fan: Low Noise Fan with Zero RPM Mode
- Capacitors: 105°C Japanese Capacitors
- Color: Black
- Form Factor: ATX
Key Features
80 PLUS Gold Certified: High efficiency operation for lower power consumption, less noise and cooler temperatures.
Tuned for Low Noise Operation: A specially set fan curve ensures that, even at full load, fan noise is kept to a minimum.
Zero RPM Fan Mode: At low and medium loads the cooling fan switches off entirely for near-silent operation.
100% All Japanese 105°C Capacitors: Premium internal components ensure unwavering power delivery and long-term reliability.
Fully Modular Cables: Only connect the cables your system needs, making clean and tidy builds easier.
Specifications
Wattage
650W
Efficiency Certification
80 PLUS Gold
Fan Mode
Zero RPM
Capacitor Type
100% All Japanese 105°C
Cable Type
Fully Modular
Noise Operation
Tuned for Low Noise
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View on Amazon →Pros & Cons
👍 Pros
- Certified 80 PLUS Gold, providing high efficiency to reduce power consumption and heat.
- Features a specially tuned fan curve that ensures minimal fan noise, even under full load.
- Includes Zero RPM Fan Mode, allowing for near-silent operation during low to medium system loads.
- Utilizes 100% All Japanese 105°C Capacitors, contributing to unwavering power delivery and reliability.
- Comes with fully modular cables, simplifying cable management and promoting cleaner PC builds.
👎 Cons
- The 650W output might be a limitation for very high-end systems requiring more power.
- While quiet, the fan will still activate and produce some noise under heavy system loads.
- Fully modular cables require more connections at the PSU, which can take up space in compact cases.
Frequently Asked Questions
What does "80 PLUS Gold Certified" mean for this power supply?
The 80 PLUS Gold certification indicates high efficiency operation, which translates to lower power consumption, reduced heat generation, and quieter performance for your system.
How quiet is this power supply during typical use?
This power supply is tuned for low noise operation with a specially set fan curve, and at low to medium loads, the cooling fan switches off entirely due to Zero RPM Fan Mode, providing near-silent operation.
What kind of capacitors are used in this power supply?
The Corsair RM650x features 100% All Japanese 105°C capacitors, which are premium internal components chosen for their ability to ensure stable power delivery and long-term reliability.
Are the cables removable from this power supply?
Yes, it features fully modular cables, allowing you to connect only the cables your system needs, which helps create cleaner and tidier PC builds.
Will this power supply generate noise when my computer is under heavy load?
Even at full load, a specially tuned fan curve ensures that fan noise is kept to a minimum, though some fan operation will be present as the unit actively cools itself.
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