Cooler Master MWE Gold 550 V3 550W 80+ Gold Non-Modular ATX PSU

Cooler Master MWE Gold 550 V3 | 80+ Gold ATX PSU

The Cooler Master MWE Gold 550 V3 550w 80+ Gold Non Modular ATX Power Supply is engineered for reliable power delivery in mainstream UK builds. It suits users building a dependable gaming PC or a workstation. This unit offers 80 Plus Gold efficiency and a quiet 120mm HDB fan. It also features a durable 12V-2×6 cable for modern GPUs.

Key Specifications

Quiet Cooling with HDB Fan

The MWE Gold V3 uses a 120mm hydrodynamic bearing fan. This design reduces friction for long-lasting quiet operation. It provides effective cooling without distracting noise. This helps maintain system stability during extended use.

High Efficiency and Stable Power

This PSU is 80 PLUS Gold certified. It achieves over 90% efficiency at typical loads. The DC-to-DC circuit design ensures stable voltage output. A single +12V rail distributes consistent power to all components. This reduces the risk of voltage drops during peak loads.

ATX 3.1 Compliance and GPU Support

The unit supports ATX 3.1 standards. It handles power excursions up to 200% of the rated output. This prepares your system for next-generation graphics cards. It includes a 12V-2×6 cable capable of delivering 450W. This cable features a 180-degree connector for tight builds.

Build Quality and Physical Design

The PSU measures 150mm (W) x 86mm (H) x 140mm (D). This standard ATX size fits most cases. The embossed cable texture improves grip during installation. It also offers a clean aesthetic inside your case. The unit operates reliably up to 40°C ambient temperature.

Connectivity and Cabling

This is a non-modular power supply. All cables are permanently attached. It includes two 4-pin EPS connectors for CPU power. This ensures compatibility with current-gen motherboards. You also get four 6+2 pin PCIe connectors and six SATA connectors.

Box contents

• Cooler Master MWE Gold 550 V3 Power Supply
• AC Power Cord (UK plug)
• ATX 24-pin cable
• 2x EPS 4+4 pin cables
• 4x PCIe 6+2 pin cables
• 6x SATA cables
• 1x 12V-2×6 cable (180-degree connector)
• Mounting screws
• User manual

Check before you buy

• Confirm your PC case supports a standard ATX PSU (150mm x 86mm x 140mm).
• Verify your motherboard has two 8-pin EPS CPU power headers.
• Check your graphics card requires a 12V-2×6 or 8-pin PCIe connector.
• Confirm the warranty region and UKCA/CE marking for your location.

Frequently Asked Questions

Q: Is the Cooler Master MWE Gold 550 V3 compatible with UK mains voltage?

A: Yes, it supports 100-240V input. You must verify the included power cord has a UK plug.

Q: Does this PSU support overclocking?

A: Yes, its 40°C maximum operating temperature and stable 12V rail support high-intensity applications.

Q: Can I use this with a modular cable kit?

A: No, this is a non-modular unit. Use only the cables included to avoid damage.

Q: What is the 12V-2×6 cable for?

A: It powers next-gen GPUs and supports up to 450W with a 180-degree connector.

Q: Is the fan always spinning?

A: No, the HDB fan spins only when needed, though this model is not marketed as semi-passive.

The Consultant’s verdict & warranty

This PSU is ideal for UK builders seeking reliable, efficient power for a single-GPU system. It offers modern GPU support and quiet cooling without premium cost. Covered by the standard Manufacturer Warranty.