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Cougar PowerX 550 W Power Supply Unit Review
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Cougar PowerX 550 W Power Supply Unit Review

COUGAR was established in 2007 by a group of PC hardware enthusiasts in Germany, who wanted more than the typical PC cases and PSUs that had the same boring looks for umpteen years and internal layouts with endlessly uncreative cosmetic variations and poor quality.

So COUGAR was formed to provide gamers more stylish product concepts with the strictest quality requirements. Today, COUGAR is a global brand manufacturer that focuses on high-quality PC cases and PSUs.

Today, we are going to take a look at the COUGAR PowerX 80 PLUS Bronze power supply. It comes in two models - with power outputs of 700 W and 550 W. We will be looking at the 550 W model specifically. Here are its key features :

  • 80 PLUS Bronze certified

  • Compatible with the latest PC technology

  • Support Multi-GPU technology

  • Active Power Factor Correction (Active PFC)

  • Ultra-quiet and temperature-controlled 120 mm fan

  • Integrated air inlet design

  • Japanese capacitors

  • 5Vsb OVP design

  • High performance at 40°C

  • Dynamic Dual 12V Lines

  • Eco-friendly

Let's find out how well this PSU performs!

For more details, read our Comprehensive Review!

To discuss about this review, head over to the forum thread!

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Lowest PriceGrabber Price

• NA


Comprehensive Review


• CGR B4-550


• Length : 140 mm
• Width : 150 mm
• Height : 86 mm

Power Input Ratings

• 100-240 V AC
• 50-60 Hz
• 10 A

Total Power Output

• 550 W

Power Efficiency Rating

• Up to 87% (80 PLUS Bronze Certified)
• Energy Star 5.0 compliant

Power Factor Correction

• Active Power Factor Correction (Active PFC)
• PF values of up to 99%

Power Output Distribution

• 120 W maximum for +3.3 V and +5 V rails
• 516 W maximum for two +12 V rails
• Automatic load distribution for the two +12 V rails

Peak Current

• +3.3V : 24 A
• +5V : 15 A
• +12V1 : 28 A
• +12V1 : 22 A
• -12V : 0.3 A
• +5Vsb : 3 A

Standby Power Standard

• ErP Lot 6 (2013) Ready
• < 0.45 W in PC off mode


• 120 mm temperature-controlled fan

Operating Ambient Temperature

• +10 °C to +50 °C
• Full wattage at ambient temperatures of up to 40 °C / 104 °F
• Power derating of 1%/°C above ambient temperature of 40 °C / 104 °F

Storage Temperature

• -40 °C to +70 °C

Operating Humidity

• 20%-85% relative humidity (without condensation)

Storage Humidity

• 5%-95% relative humidity (without condensation)

Safety Features

• UVP (Under-Voltage Protection)
• OVP (Over-Voltage Protection)
• SCP (Short-Circuit Protection)
• OPP (Overload Protection)
• OCP (Over-Current Protection)
• OTP (Over-Temperature Protection)


• 1 x 24-pin main power cable
• 1 x 8-pin (4+4) CPU power cable
• 3 x 4-pin peripheral power cables
• 1 x 4-pin floppy power cable
• 6 x 5-pin SATA power cables
• 2 x 8-pin (6+2) PCI Express power cables


• 3 Years Limited Warranty


Our Review System

Tech ARP is committed to developing new ways to improve your experience with us. As part of our continuous efforts to improve the value of our reviews to you, we are implementing a multi-tier review system.

This review system is designed to allow you to quickly receive information on the latest hardware or software. This new system also allows you to quickly get the gist of the review without reading through it. This can be very useful, especially in situations where you need to make a quick purchase decision.

In this new system, we start with a Product Overview whenever a company sends us a press release about their latest product. We shift through extraneous PR-talk to create a straightforward summary of the product's features as well as specifications. This allows you to quickly find out all the pertinent details about the product, without reading through official press releases.

When we receive the product for review, we will quickly take photos of it and create a Pictorial Review. The purpose of a pictorial review is to allow you, the reader, to quickly examine the product visually. It may help you make better purchase decisions, especially if you cannot wait for the full review.

After thorough testing, we will post a Comprehensive Review of the product. This adds on to the pictorial review with comprehensive test results and our final conclusion on the product.

But no matter whether you are reading a Pictorial Review or a Comprehensive Review, you can always read the summary of the review as well as examine the product's specifications right on the first page. In all our new reviews, we will maintain the first page as a Product Overview page. If the product is listed in PriceGrabber, you can also check out the lowest price online.

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