ποΈ Product Name
Cooler Master MPX-5501-AMAAB-UK β MasterWatt 550W Semi-Modular 80+ Bronze Power Supply (5-Year Warranty)
β‘ Product Overview
The Cooler Master MasterWatt 550 is a semi-modular ATX power supply designed for quiet, efficient performance. Featuring 80 PLUS Bronze certification, a semi-fanless mode up to 15% load, and a durable 120mm Silencio fan with LDB bearing, itβs ideal for mainstream builds. Dual Forward and DC-to-DC circuit design ensures stable voltage output, while flat modular cables simplify cable management.
π Key Features
π§² Semi-modular layout with flat black cables
π 80 PLUS Bronze certified for up to 85% efficiency
π Semi-fanless mode up to 15% load for silent operation
π§ Dual Forward and DC-to-DC circuit design for stable output
π‘οΈ Full suite of protections: OVP, OPP, SCP, OCP, UVP, OTP
π¦ 5-year Cooler Master warranty
π Technical Specifications
| Specification | Details |
|---|---|
| Model Number | MPX-5501-AMAAB-UK |
| Series | MasterWatt |
| Form Factor | ATX 12V v2.4 |
| Wattage | 550W |
| Efficiency | 80 PLUS Bronze |
| Modularity | Semi-modular |
| Fan | 120mm Silencio fan with LDB bearing |
| Protections | OVP, OPP, SCP, OCP, UVP, OTP |
| Warranty | 5 years |
π Connector Configuration
| Connector | Quantity |
|---|---|
| 24-Pin ATX | 1 |
| EPS 4+4 Pin | 1 |
| PCIe 6+2 Pin | 2 |
| SATA | 6 |
| Peripheral 4-Pin | 3 |
π― Recommended Use Cases
β€ Quiet home and office builds
β€ Entry-level gaming PCs
β€ Efficient mainstream systems
β€ Builders seeking semi-modular cable flexibility
π€ Customer Assurance
π‘οΈ Warranty / Guarantee: 5-year manufacturer warranty
π Returns Policy: As per standard reseller terms
π Shipping Info: Secure packaging with tracking support
π Customer Support: Backed by Cooler Masterβs global service network
π Call to Action
Build quietly and efficiently with Cooler Masterβs MasterWatt 550W semi-modular Bronze PSU

Thanks for choosing
β YOUR TRUSTED IT PARTNER.

