Cooler Master MWE Gold 550 V3 550W 80+ Gold Non-Modular ATX PSU
£57.78 inc VAT
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About This Item
- Cooler Master MWE Gold 550 V3 550W 80+ Gold PSU
- ATX 3.1 support with durable 12V-2×6 cable
- Single +12V rail for consistent power output
- Quiet 120mm HDB fan for effective cooling
- Non-modular design with embossed cables
- High temperature resilience up to 40°C
- 5-year warranty included
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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
| Metric | Spec. |
|---|---|
| Total Power Output | 550 W |
| Efficiency Rating | 80 PLUS Gold |
| PSU Format | ATX |
| Modular Type | Non-Modular |
| 12V Rail Design | Single Rail |
| Warranty | 5 Years |
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.
In the box
- 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
Before you order
- 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.
Buyer FAQs
Is the Cooler Master MWE Gold 550 V3 compatible with UK mains voltage?
Does this PSU support overclocking?
Can I use this with a modular cable kit?
What is the 12V-2×6 cable for?
Is the fan always spinning?
Why we rate it
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 applicable manufacturer warranty.









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