Corsair
RM Series RM550
Best quiet power supply for efficient, mid-range desktop builds.
The CORSAIR RM550 is a fully modular power supply unit designed for optimal silence and 80 PLUS Gold-rated efficiency. It features flat black modular cables for easy and neat cable management, ensuring a clean build. This PSU is compatible with ATX12V v2.4 and EPS12V 2.92 standards and includes a 140mm fan with Rifle Bearing technology for quiet operation. With a continuous power output of 550 Watts and a 5-year warranty, it's a reliable choice for various PC builds.
$119.99
Owner Satisfaction
4.6
/ 5
Category Rank
230
/ 1062
#230 in Computer Power Supplies
Price vs Category Average
-87%
Below average
EPS Connector
1
Who it's for
- Quiet-focused builders seeking a silent workspace
- System builders prioritizing clean aesthetics and airflow
- Eco-conscious users looking to lower energy bills
Who should skip it
- Basic PC builders needing only essential functionality
- Budget-conscious shoppers prioritizing cost over premium features
- Power users planning for high-end GPU upgrades
Performance breakdown
Energy Efficiency
80 PLUS Gold certification ensures minimal power waste during heavy operation.
Acoustic Performance
Zero RPM mode and large fan design keep noise levels virtually silent.
Cable Management
Fully modular, flat black cables simplify routing for a clean build.
Build Reliability
High MTBF rating and a five-year warranty provide long-term peace of mind.
Installation Ease
Modular design allows you to connect only the cables you actually need.
Component Compatibility
Standard ATX form factor fits seamlessly into most modern desktop cases.
Key Specs
EPS Connector
1
SATA Connector
6
Fan Bearing Technology
Rifle Bearing
Dimensions
150mm x 86mm x 160mm
Modular
Fully
PSU Compatibility
ATX12V v2.4 and EPS12V 2.92 standards
Cable Type
Low-Profile, All Black
Floppy Connector
1
Features
- Fully modular design for easy installation and clean builds.
- Optimized for quiet operation.
- Delivers 80 PLUS Gold-rated efficiency.
- Flat black modular cables for neat cable management.
- Supports ATX12V v2.4 and EPS12V 2.92 standards.
- Features Zero RPM mode for silent operation at low loads.
- Equipped with a 140mm fan with Rifle Bearing technology.
What customers say
Customers consistently praise the Corsair RM550 for its exceptional reliability and remarkably quiet operation. Many users highlight its fully modular design, which greatly simplifies installation and cable management, contributing to a clean build. The perceived high quality of components further reinforces confidence in its long term performance. Consumers often feel this power supply offers excellent value, delivering premium features and dependable power without a premium price tag, making it a highly recommended choice for various PC builds.
Know before you buy
A fully modular design means every cable can be detached from the power supply unit. This allows you to connect only the cables you actually need, which significantly reduces clutter inside your case and improves airflow.
Yes, the RM550 is designed for silence. It features a Zero RPM fan mode that keeps the 140mm fan completely off during low and medium loads, ensuring near-silent operation when you aren't pushing your system hard.
550 Watts is generally sufficient for a mid-range gaming build featuring a single graphics card and a standard processor. However, you should verify the total power consumption of your specific components, particularly your GPU, to ensure it fits within this limit.
The 80 PLUS Gold certification indicates that this power supply is highly energy-efficient, converting at least 87% to 90% of power from the wall into usable energy for your PC. This results in less wasted electricity, lower heat output, and reduced operating costs over time.
Yes, the RM550 comes with flat, low-profile black cables. Their thin, flexible design makes them much easier to route through tight spaces and behind the motherboard tray compared to traditional, bulky sleeved cables.
The Corsair RM550 is backed by a 5-year warranty. This provides peace of mind that the unit is built to last, supported by a 100,000-hour mean time between failures (MTBF) rating.
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$120