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Cooler Master MWE 550 550W 80+ White PSU w/ Hydro-Dynamic-Bearing Silent 120mm Fan, Single +12V Rail, Flat Black Cables

In stock. Limit 999 per customer.
Ships from United States.
  • 450W
  • 500W
  • 550W
  • 600W
  • 650W
  • 750W
  • 850W
  • 1000W
  • 1300W
  • Full Modular
  • Non-Modular
  • Semi-Modular
  • MWE
  • MWE Gold
  • MWE White
  • MasterWatt TUF
  • MasterWatt
  • Single +12V Rail: The power source is monitored on a single circuit, ensuring consistent output through all connected cables.
  • DC-to-DC Technology: The DC-to-DC + LLC circuit design offers reliable, stable output to all connected components.
  • 120mm HDB Fan: Employs a responsive fan speed control, limiting noise to specific cooling requirements during use.
  • Silent Mode: The fan will not spin under lower loads or standby, ensuring a quiet user experience.
  • Flat Black Cables: Flat cables to take up less space for easier cable management.
  • 3 Year Warranty: A standard limited manufacturing warranty of 3 years from the date of purchase.
Overview
Specs
Reviews
logo for COOLER MASTER
Close-up view of vent over fan

MWE 550 WHITE - V2

Robust, Stable, and Efficient Power Delivery

Four power supplies from the same series with different power ratings.

POWER UP

The MWE White offers a simple, reliable way to power your system safely and efficiently at a low cost. The 80 PLUS White efficiency rating, DC-to-DC + LLC circuit design, single +12V rail, active PFC, and temperature sensitive HDB fan offer a power supply unit that stays true to its original purpose. This PSU will handle all your core computing needs with none of the hassles or challenges of additional specialty features, software synchronization, or other bells and whistles. Just plug it into your system and get to work. For a great core computing experience, you can't go wrong with the MWE White.

A chart showing efficiency at different load levels

80 PLUS STANDARD CERTIFIED

It's important to understand what efficiency is and what the ratings actually mean. The efficiency rating indicates how much power is retained and/or lost when transferring it from the wall to your components. It does not indicate the overall quality of the PSU. A PSU doesn't need an 80 PLUS Gold rating to be safe and reliable. And a PSU with an 80 PLUS Gold rating isn’t necessarily either of those things. The MWE White guarantees a typical efficiency of 80% while being both safe and reliable.

Icon for 80 PLUS white
A fan is spinning fast

120MM HDB FAN

The constant struggle between cooling and noise is as old as the consumer PC industry itself. Keeping your components cool without having to hear about it while you work is still one of the greatest challenges for all fan based cooling technologies. The MWE White's solution to this problem is a thermally sensitive 120mm HDB fan. It spins based on the system's temperature, constantly adjusting to keep your PSU running smoothly and safely with the minimum amount of noise required.

Close-up view of CPU cooler

SINGLE +12V RAIL

Getting power from the wall to the PSU and then to your components is a tricky situation. The power comes in one voltage level, but your components need a different one. That power has to first be transferred to/through a converter in order to make it safe for your parts to use without overloading. The lines/rails used to initially move power from the wall to the converter need to be reliable and consistent to ensure your system's overall performance. That's why the MWE White only uses one +12V rail for this process. This way all the components in your system are constantly fed the same power from the same source in order to guarantee consistency between all connections.

icon of 100% power being delivered to VGA card
Close-up view of all components installed on the PCB

DC-TO-DC CIRCUIT DESIGN

Power comes in multiple voltage levels. The wall delivers power in one voltage level but your components each need a specific voltage to operate properly. The process of converting raw power from the wall to the multiple voltage levels your components need requires special components to complete this process quickly, efficiently, and safely. The MWE White's DC-to-DC + LLC technology was painstakingly crafted to accomplish this goal. The Dual Forward circuit layout has been designed to convert 12V power to 3V and 5V levels with minimal ripple noise, 80 PLUS efficiency, and reduced risk to your connected components.

Icon for DC to DC
A flat cable is displayed against two illuminated cases.

FLAT BLACK CABLES

For many PC Builders with aesthetics in mind, cabling can be one of the most troublesome parts of assembling a PC. Cables can be confusing, too short or too long, and they almost never look good. The MWE White uses flat and flexible black cables to help deal with these problems. These cables are more discrete and flexible, making them easier to implement into your system while taking up less space. This is especially useful for smaller cases and preserving airflow.

CABLE LENGTH/OUTPUT RATING

All power cables with length marked
Each power connectors' power output

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details

Return Policies

  • Return for refund within: 30 days
  • Return for replacement within: 30 days
  • This item is covered by Newegg.com's Standard Return Policy
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