ReviewsCoolersCooler Master MWE 500 Review

Cooler Master MWE 500 Review

Our hands-on testing of the Cooler Master MWE 500 allows us to give you an in-depth analysis of its design and performance.

Review Summary

The Cooler Master MWE 500 is an entry-level budget power supply suitable for casual PC gamers and routine desktop users. It’s ideal for basic builds with ErP 2013 Lot 6 certification, APFC + PWM technology, and energy-efficient features. However, it lacks advanced features and high-performance capabilities, making it unsuitable for demanding gaming or professional applications.

  • Features - 7.5/10
  • Design - 6.5/10
  • Performance - 8/10
  • Value - 7.5/10


  • Budget-friendly option for casual PC gaming.
  • Reliable choice for routine desktop usage.
  • Energy-efficient with ErP 2013 Lot 6 certification and APFC + PWM technology.


  • Not suitable for advanced gaming or professional applications.
  • Non-modular design may not appeal to users prioritizing cable management.
  • Focuses on essential power without advanced features.

Cooler Master sent us their MWE 500 for review. It’s an entry-level budget PSU with ErP 2013 Lot 6 certification, ensuring energy efficiency. The APFC + PWM technology boosts reliability and performance. It complies with ErP 2013 Lot 6 and CE and helps cut utility expenses through power savings. Stay tuned for an overview, including PCB and circuitry details, since we lack proper testing equipment.

Key Takeaways

  • Cooler Master MWE 500 is an entry-level budget PSU with ErP 2013 Lot 6 certification, featuring APFC + PWM technology for reliability and energy efficiency.
  • It is ideal for casual PC gamers with budget graphics cards or users requiring a PSU for routine desktop use.
  • It is unsuitable for users requiring advanced features or extensive power for high-performance gaming or professional applications.

Let’s give the specifications a thorough look.

Product Name MWe 500
Product Number MPW-5002-ACABW
Type Intel Form Factor ATX 12V 2.31
PFC Active PFC (>0.9 typical)
Input Voltage 200-240 VAC
Input Current 4A
Input Frequency 47-63Hz
Dimensions (LxWxH) 140 x 150 x 86mm
Fan Size 120 mm
Fan Bearing HDB
Fan Speed 800-1744 RPM
Power Good Signal 100-500ms
Hold Up Time >14ms
Efficiency 85% @ Typical Load
ERP 2013 Lot 6 Yes
MTBF (Mean Time Between Failures) 100,000 Hours
Operating Temperature 0°C and 40°C (32°F – 104°F)
Protections OVP / OPP / OTP / SCP
Connectors MB 20+4 Pin, CPU 4+4 Pin, SATA, 4 Pin Peripheral, FDD Cable 4 Pin, PCI-e 6+2 Pin

Packaging and Unboxing

The power supply comes in a black color cardboard box.

Box Contents

There is not much content in terms of the accessories in this box. We have a user guide, 4 screws, and the standard power cable.


The unit is securely packaged in an air pocket container for safe shipping.

External Look

It’s a non-modular PSU with pre-installed cables following the Intel Form Factor of ATX 12V V 2.31. Its dimensions are 150 x 140 x 86mm, with an input voltage range of 200-240Vac and an input frequency range of 47-63 Hz. The unit features basic protection against OVP, OPP, OTP, and SCP and operates at an efficiency of 85% at a typical load. The top side includes a 120mm fan, a warranty void label on one of the screws, and a fan filter for cooling.

On the side, a charcoal-colored sticker with Cooler Master’s logo and the MWE 500 model is present. The power info label and serial number label are also on this side. The model MPW-5002-ACABW unit is a switching power supply with Active Power PFC, 200-240V AC input, and a single +12V rail with 38A. The rear side features a mesh for heat dissipation, a 3-pin per connector, a power on/off button, and no vents on the backside.

The backside has a solid cover without vents, and 5 screws indicate the PCB is secured to the base. The unit includes 24-pin ATX and 8-pin EPS power cables sleeved in black, while other cables are not sleeved or braided.

WARNING: If you have advanced gaming requirements or need a modular setup, the MWE 500 may not meet your needs, as it lacks high-performance capabilities and comes as a non-modular PSU.

\The connectors’ info is as follows: 

Connector Quantity Length of the Cable
MB 20+4 Pin 1x 550mm
CPU 12V 4+4 Pin 1x 550mm
PCIe 6+2 Pin 2x [On a single cable] 500mm
SATA 6x [3x on single cable] 700mm
Peripheral 4 Pin 3x [On single cable] 850mm
FDD Cable 4 Pin 1x [On the Molex connectors’ cable]

Internal Look

It is time to take a closer look at the PCB and circuit design. Examine the PCB and circuit design of the computer, ensuring stable voltages like +5V, -5V, +12V, -12V, and 3.3V are available at power supply terminals. Consider voltage, current, harmonic factor, cross-load regulation, noise resilience, and safety parameters like overvoltage protection (OVP) and overcurrent protection (OCP) for optimized power provision.

The external view reveals a metal body with color-coded cables. Removing the lid exposes a black PCB with components working together. The power socket features a safety-certified capacitor for protection against EMI/RFI interference, ensuring reliability and quality power components.

Inspecting the lateral section, observe a bridge rectifier and a 400V capacitor for AC ripple filtering. Active power factor correction distinguishes this power supply from entry-level ones, improving the power factor affected by high switching operations. The secondary stage provides stabilized, rectified, and filtered DC voltage, with proper isolation, solder joints, and traces contributing to a high-grade PCB.

Considering all parameters, the Cooler Master power supply qualifies as an entry-level budget option with an additional active PFC feature, setting it apart from its counterparts. It offers a reliable system choice that meets criteria like safety, robustness, and quality power components.


We don’t have the right tools to measure the PSU’s performance accurately. So, we used Thermaltake Dr. Power II to test it. This device checks voltages on different connectors and identifies any issues with the PSU. We compare the results with Intel’s standards and the testing equipment’s measuring range.

PRO TIP: The Cooler Master MWE 500 is an ideal choice for casual PC gamers and routine desktop users seeking a reliable and budget-friendly power supply with energy-efficient features.

The below-mentioned table has the Intel Standard, Measuring Range, and Reported Voltages:

Cool Master 500 MWE Testing

All the tested voltages fall within Intel’s standards. Here are the connectors-wise reported voltages:

Connector Reported Voltage (V)
ATX 24-Pin 11.6
CPU 4+4 Pin +12V +11.9
PCIe 6/8 Pin +12V +11.8
Peripheral +5.01, 3.3V
SATA +5.01, 3.3V

Should You Buy It?

Through rigorous product Cooler Master MWE 500 , my evaluation is as follows:

Buy It If

✅ You Are into Casual PC Gaming or Have Budget Graphics Cards: The Cooler Master MWE 500 is well-suited for you if you are a casual PC gamer or a user with budget graphics cards. It is an ideal choice for basic or entry-level budget builds, making it a suitable option for setups focused on casual gaming.

✅ You Need a Power Supply for Routine Desktop Use: If you need a power supply for everyday tasks and routine desktop usage, the MWE 500 provides a reliable and budget-friendly option. It caters to your power needs for routine computing without unnecessary frills.

✅ You Prioritize Energy Efficiency and Power Savings: With ErP 2013 Lot 6 certification and APFC + PWM technology, the MWE 500 is designed for energy efficiency. This feature helps you cut utility expenses through power savings, making it a suitable choice if you are conscious of energy consumption.

Don’t Buy It If

❌ You Require Advanced Features or High-Performance Gaming: If you have demanding gaming requirements or need a power supply for professional applications, the MWE 500 may fall short. It may not provide the advanced features or high power output you need for such purposes.

❌ You Need a Modular Power Supply: The Cooler Master MWE 500 is a non-modular PSU, meaning all cables come pre-installed. This PSU may not be the most suitable choice if you prioritize a modular setup for better cable management and customization.

❌ You Are Looking for Additional Features Beyond Basic Requirements: If you are searching for a power supply with advanced features or specific functionalities beyond the basics, the MWE 500, an entry-level budget option, may not meet your requirements. It focuses on providing essential power without unnecessary extras, which may not align with your needs.

Final Words

The Cooler Master MWE 500 is an entry-level, budget power supply with 80-plus certification for the 230V EU. It’s green, meeting ErP 2013 Lot 6 and CE standards for power savings. Non-modular, it follows the Intel Form Factor of ATX 12V V 2.31, with dimensions 150mm(L)x140mm(W)x86mm(H). Model no: MPW-5002-ACABW. Input voltage: 200-240Vac, frequency: 47-63 Hz. Key specs include a single +12V rail with 38A, providing 456W output. Active power factor correction is a standout feature. Ideal for basic or entry-level budget builds, with a 3-year warranty. Recommended for casual PC gamers or routine desktop users.

I am thankful to the Cooler Master for the Cooler Master MWE 500 Review.

Recent Updates

  • February 25, 2024: A few text changes to improve readability. Added image galleries.


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