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Shipments to GA, CA, NY, TX, NJ, IA, NC, WA, AZ, MA, CT, and IN are subject to sales tax.

Important Notice:
To avoid any delays in shipping, please ensure that the shipping address on this order is the same as your PayPal "Confirmed Address."
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While most PayPal orders are shipped within one (1) business day, orders may take up to five (5) business days to ship if your address is not confirmed.

  • Cooler Master MasterWatt 550 Semi-Fanless Modular 80 PLUS Bronze Certified Power Supply
  • Cooler Master MasterWatt 550 Semi Fanless Modular 80 PLUS Bronze Certified Power Supply 300/500
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  • Cooler Master MasterWatt 550 Semi-Fanless Modular 80 PLUS Bronze Certified Power Supply
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Shipping Information

The shipping process is fully robotic and orders are pulled and shipped quickly in 7 different warehouses across the US and then dropped in sealed USPS, UPS and FedEx containers for pick-up on the next business day. Once pulled, orders cannot be stopped, however you can return orders for refund unopened if you have changed your mind. Tracking normally is sent / updated within 48 hours of pick-up. Delivery is normally 7 business days or less. It may take longer in rural areas. Weekends and Holidays do not count as business days and have no pickup, movement or delivery.

Covid 19 Update — We have seen some slowdowns and backlogs in package sorting and scanning by UPS, Fedex and USPS caused by worker shortages and closed facilities due to the Covid 19 Pandemic. Some UPS and USPS hubs are no longer scanning all packages, as a result some tracking will show nothing until delivery.

Cooler Master MasterWatt 550 Semi-Fanless Modular 80 PLUS Bronze Certified Power Supply

$82.88

In Stock
FREE GROUND SHIPPING *


Cooler Master MasterWatt 550 Semi-Fanless Modular 80 PLUS Bronze Certified Power Supply MFG: Cooler Master
UPC: 884102034978

  • Internal
  • 120 V AC, 230 V AC Input
  • 550 W / 3.3 V DC, 5 V DC, 12 V DC, 12 V DC, 5 V DC
  • 1 +12V Rails
  • 1 Fan(s)
  • 85% Efficiency


* ground shipping normally takes 3-10 business days, depending on destination

Overview

The MasterWatt is an 80 Plus Bronze power supply with an innovative semi-fanless mode. Under 15% load,the MasterWatt fan remains idle,offering zero dBA. When demand for power increases,a gradual fan curve provides measured cooling with little to no noise at any output level. Dual forward / DC-to-DC topology is employed to keep the voltage stable in all conditions. For increased performance,MasterWatt is equipped with 16 AWG power cables,which reduces resistance,thereby increasing efficiency.

80 PLUS Bronze Certified

The 80 PLUS Bronze certification guarantees that MasterWatt delivers an average efficiency of 85%.

Durable LDB Bearing

Cooler Master 120mm Silencio FP fan combines sealed LDB bearings with quiet fan blades offering a long lifetime of quiet cooling.

  • Sealant on the The groove outside of the bearing helps to circulate the oil
  • Sealant on the bobbin and featuring the highest dustproof level IP6X
  • Recycle slot adds extra storage space for the oil
  • The shaft makes the oil flow by pumping it while spinning

Semi-Fanless up to 15% load

MasterWatt Operates at 0dB under 15% load. Experience noise-free basic computing.

Dual Forward and DC-to-DC Circuit Design

The Dual Forward and DC-to-DC circuit design offers reliability and stability. This is especially significant in +3.3V and +5V outputs.

More Conductive PCI-e Cables

The MasterWatt uses 16AWG cables for PCI-e cables. Less resistance and better efficiency,providing you a safer user environment.

Tech Specs

Manufacturer Cooler Master Co., Ltd
Manufacturer Part Number MPX-5501-AMAAB-US
Manufacturer Website Address http://www.coolermaster-usa.com
Brand Name Cooler Master
Product Line MasterWatt
Product Model MPX-5501-AMAAB
Product Name MasterWatt 550 Semi-Fanless Modular 80 PLUS Bronze Certified Power Supply
Product Type Power Supply
Technical Information:
Specification ComplianceATX12V/EPS12V
Efficiency85%
Number of Fans1
ModularYes
Power Description:
Number of +12V Rails1
Input Voltage120 V AC
230 V AC
Output Voltage3.3 V DC @ 20 A
5 V DC @ 20 A
12 V DC @ 45.80 A
- 12 V DC @ 300 mA
5 V DC @ 3 A
Output Power550 W
Physical Characteristics:
Form FactorInternal
Height3.4"
Width5.5"
Depth5.9"
Weight (Approximate)3.54 lb
Miscellaneous:
Environmentally FriendlyYes
Environmental Certification80 Plus Bronze
ErP Lot 6
T
cTUVus
WEEE
China RoHS
RoHS
Green Dot
Warranty:
Limited Warranty5 Year

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