Cooler Master MasterWatt 550 550W 80 Plus Bronze Semi-Modular Power Supply

BH #COMPX5501AMA • MFR #MPX-5501-AMAAB-US
Cooler Master
Cooler Master MasterWatt 550 550W 80 Plus Bronze Semi-Modular Power Supply
Key Features
  • 550W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX 12V Version 2.4
  • 2 x PCI-e Connectors
The MasterWatt 550 550W 80 Plus Bronze Semi-Modular Power Supply from Cooler Master is a standard ATX-sized power supply designed to provide your system with stable and reliable power. It can output up to 550W of power and includes all the cables you need for a regular single graphics card build. Moreover, it operates quietly and features multiple protection technologies to keep things operating smoothly.
More on the Way
Expected availability: 4-6 weeks
$84.99

Cooler Master MasterWatt 550 550W 80 Plus Bronze Semi-Modular Power Supply

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Cooler Master MasterWatt 550 Overview

  • 1Description
  • 280 Plus Bronze
  • 3Durable LDB Bearing Fan
  • 4Semi-Fanless Operation
  • 5Dual Forward & DC-to-DC Circuit Design
  • 6More Conductive PCI-e Cables
  • 7Protection

The MasterWatt 550 550W 80 Plus Bronze Semi-Modular Power Supply from Cooler Master is a standard ATX-sized power supply designed to provide your system with stable and reliable power. It can output up to 550W of power and includes all the cables you need for a regular single graphics card build. Moreover, it operates quietly and features multiple protection technologies to keep things operating smoothly.

80 Plus Bronze

The 80 Plus Bronze certification guarantees that MasterWatt delivers an average efficiency of 85% at full load.

Durable LDB Bearing Fan

This power supply is built with a Cooler Master 120mm Silencio FP fan, which combines sealed LDB (Loop Dynamic Bearing) bearings with quiet fan blades for durable, quiet cooling.

Semi-Fanless Operation

The MasterWatt operates silently at 0 dB when under 15% load. Past that, the fan starts spinning to dissipate heat.

Dual Forward & DC-to-DC Circuit Design

The Dual Forward and DC-to-DC circuit design offers reliable and stable power that's especially significant in +3.3 V and +5 V outputs.

More Conductive PCI-e Cables

The MasterWatt uses 16 AWG PCI-e cables for less resistance and better efficiency.

Protection

  • OCP (Over Current Protection)
  • OVP (Over Voltage Protection)
  • UVP (Under Voltage Protection)
  • OPP (Over Power Protection)
  • OTP (Over Temperature Protection)
  • SCP (Short Circuit Protection)
UPC: 884102034978

Cooler Master MasterWatt 550 Specs

TypeATX 12V Version 2.4
Input Voltage100 - 240 VAC
Input Current8 - 4 A
Input Frequency50 - 60 Hz
Connectors1 x 24-Pin Motherboard
1 x 4+4-Pin CPU
2 x 6+2-Pin PCI-e
6 x SATA
2 x 4-Pin Peripheral
1 x 4-Pin FDD Cable
Output+3.3 V - 20 A
+5 V - 20 A
110 W

+12 V - 45.8 A
550 W

-12 V - 0.3 A
3.6 W

+5 Vsb - 3 A
15 W
Fan120 mm
MTBF (Approx.)100,000 hours
Environmental Specifications
Operating Temperature32 - 104°F / 0 - 40°C
General
80 PLUS Certification80 Plus Bronze
Regulations and Standard ComplianceCCC, CE, TUV-RH, RCM, EAC, cTUVus, FCC, BSMI, KC, CB
Dimensions (L x W x H)5.51 x 5.91 x 3.39" / 140 x 150 x 86 mm
WeightNot Specified by Manufacturer
Packaging Info
Package Weight5 lb
Box Dimensions (LxWxH)10.6 x 7.8 x 4.5"
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