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Cooler Master Silent Pro Gold 450W and 550W review: affordable gold

Tested and compared to 44 other 400-550 watt PSUs

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Introduction

A couple months ago, Cooler Master introduced two new products in its Silent Pro Gold power supply series. We tested both of them, with capacities of 450 watt and 550 watts.

With the new Silent Pro Gold power supplies, Cooler Master wants to offer efficient 80 Plus Gold PSUs for an affordable price. The 450W model costs £50 / € 67, and the 550W model costs £60 / € 77. That makes the 550W model cheaper than most other 450W of 500W Gold power supplies on the market. 


Cooler Master Silent Pro Gold 550W

Cooler Master Silent Pro Gold 550W

The two Silent Pro Gold PSUs appear to be based on FSP Aurum models and likely come from the Fortron factory. Both have a single rail design, where the 450W model can supply up to 35A on the 12V cables, and the 550W model up to 42A. That means that both power supplies can supply most of their capacity on the 12V rail. On the 5V and 3.3V rails they supply up to 24A.

The number of connectors is identical on both: 3x molex, 1x floppy, 6x SATA and 2x 6/8-pin PEG. While they're not modular, which you can't expect in this price range, all the cables are sleeved.

The power supplies have 12cm fans, and how fast they spin depends on the load. There's no power switch, and they weigh 1.5 kg. 

The design is modest but sleek, fine for this segment. How they perform is much more important, so let's get to that. 

Cooler Master Silent Pro Gold 550W
Silent Pro Gold 550W

Cooler Master Silent Pro Gold 450W
Silent Pro Gold 450W

Compare

two products discussed in this review

  Product Lowest price
Cooler Master Silent Pro Gold 450W
REVIEW
Cooler Master Silent Pro Gold 550W
REVIEW

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