Cooler Master MWE 550W 80 PLUS White Power Supply | Power Supply
Cooler Master MWE 550W 80 PLUS White Power Supply
The Cooler Master MWE 550W 80 PLUS White Power Supply is an essential, highly reliable entry-to-mid-tier power supply designed to deliver clean, efficient, and consistent energy to modern desktop PC builds. Engineered as a straightforward plug-and-play power solution, the MWE 550 White provides 550 watts of continuous power output, making it an ideal choice for gaming setups, home office PCs, and budget-conscious hardware configurations requiring steady electrical delivery under daily operational workloads.
Featuring an advanced DC-to-DC circuit layout combined with LLC Dual Forward topology, the MWE 550 White guarantees precise voltage regulation across all electrical rails while minimizing ripple noise. Built with flexible flat black cables for improved chassis aesthetics and easy cable management, along with a temperature-sensitive 120mm Hydro-Dynamic Bearing (HDB) fan, this power supply offers optimal cooling performance, silent low-load operation, and comprehensive industrial electrical protections for complete long-term peace of mind.
80 PLUS Standard 230V EU Certified Efficiency
Guaranteed 85% Efficiency for Reduced Energy Waste and Lower Heat
The Cooler Master MWE 550 White carries an official 80 PLUS Standard certification, delivering up to 85% electrical efficiency under typical operating loads. This efficient AC-to-DC conversion reduces heat generation within the power unit itself, ensuring lower operating temperatures, extended component longevity, and reduced electricity consumption.
Integrated Active Power Factor Correction (Active PFC) with dedicated circuit controllers optimizes total power utilization from the AC outlet, maintaining clean current delivery while protecting internal PC components from minor grid fluctuations and power noise.
DC-to-DC Technology & Single +12V Rail Architecture
Stable Power Conversion for Modern Processors and Graphics Cards
Engineered around a high-output single +12V rail design, the MWE 550 White can deliver up to 45A of dedicated current directly to power-hungry system components such as CPUs and dedicated PCI-E graphics cards. This eliminates power imbalance limitations and guarantees stable performance during intensive gaming or system loading.
The internal DC-to-DC circuit design generates secondary +3.3V and +5V outputs directly from the main +12V power source. This advanced topology ensures tight cross-regulation between different voltage rails, reducing voltage drop and providing clean signal integrity even under modern power-saving C-states.
120mm Hydro-Dynamic Bearing (HDB) Thermal Fan
Intelligent Thermal Fan Speed Regulation for Silent Operation
Cooling the internal components of the MWE 550 White is a premium 120mm Hydro-Dynamic Bearing (HDB) fan. Unlike standard sleeve bearing fans, HDB construction significantly reduces mechanical friction and rotation vibration, extending the fan’s lifespan while maintaining exceptionally low acoustic output.
The fan features a thermally sensitive control system that automatically adjusts its speed based on internal PSU temperatures. At low to moderate system workloads, the fan operates at low RPMs for whisper-quiet acoustics, scaling up only when heavy workloads require maximum airflow to keep internal heat sinks cool.
Low-Profile Flat Black Cables & Full Safety Suite
Clean Cable Routing with Comprehensive Industrial Protection Safeguards
The Cooler Master MWE 550 White comes equipped with flexible, low-profile flat black cables. These non-braided flat wires take up significantly less volume inside the PC chassis, making them easy to bend, route behind the motherboard tray, and keep out of the way of primary internal airflow pathways.
To guard your hardware investment against power anomalies, the MWE 550 White incorporates full industrial-grade protections, including Over Power Protection (OPP), Over Voltage Protection (OVP), Under Voltage Protection (UVP), Short Circuit Protection (SCP), and Over Temperature Protection (OTP).
Why Choose Cooler Master MWE 550W 80+ White Power Supply?
550W Rated Output, DC-to-DC Conversion, HDB Quiet Fan, and Flat Flexible Cabling
The Cooler Master MWE 550W 80 PLUS White Power Supply offers an outstanding balance of performance, power stability, and build quality for everyday PC builders. With its 550W output, 85% energy efficiency rating, robust single +12V rail, and DC-to-DC architecture, it reliably powers essential desktop setups without unnecessary cost or complexity.
Whether you are building a new budget gaming desktop or updating an existing PC system, the MWE 550 White provides dependable electrical safety, quiet cooling, and clean cable management in a compact ATX form factor.
Product Specifications
Main Technical Features
| Brand | Cooler Master |
| Model Series | MWE White Series / MWE 550 (MPE-5501-ACABW / ACAAW) |
| Total Power Output | 550 Watts Continuous Power |
| Efficiency Certification | 80 PLUS Standard 230V EU (Up to 85% Efficiency) |
| ATX Specification | ATX 12V V2.52 |
| Power Factor Correction | Active PFC |
| Circuit Topology | DC-to-DC + LLC Dual Forward Design |
| Single +12V Rail Output | +12V / 45A Max (Up to 540W) |
| Form Factor | Standard ATX Form Factor |
| Cable Style | Flexible Low-Profile Flat Black Cables |
| Modularity | Non-Modular |
| Cooling Fan Size | 120mm Hydro-Dynamic Bearing (HDB) Fan |
| Fan Control | Thermally Sensitive Smart Fan Speed Control |
| Input Voltage Range | 200V – 240V AC / 100V – 240V AC (Depending on Region) |
| Protections | OVP / UVP / OPP / OTP / SCP Full Protection Suite |
| Main Motherboard Connector | 1 x 24-Pin ATX Connector |
| CPU Power Connector | 1 x 8-Pin (4+4) EPS / CPU Connector |
| PCI-E Connectors | 2 x PCI-E 8-Pin (6+2) Connectors |
| SATA Power Connectors | 6 x SATA Connectors |
| Molex Peripheral Connectors | 3 x 4-Pin Peripheral Connectors |
| Dimensions (L x W x H) | 140 x 150 x 86 mm |
| MTBF (Mean Time Between Failures) | >100,000 Hours |
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