be quiet! Dark Power Pro 11 850W Power Supply Review

Author:Paul Johnson

Editor:Kyle Bennett

Date: Thursday , September 14, 2017

It's quiet! It's dark! It's a power pro turned up to eleven! What more is there to say? Actually, this time around there are quite a few good things to say about be quiet. Not so much about the marketing though...


be quiet!, a division of Listan GmbH & Co. KG along with Xilence is a rather new face in the DIY enthusiast PC market. be quiet! began as an outgrowth of Listan's e-tail business in 2002. Since then, be quiet! has developed product lines covering cases, coolers, fans, and power supplies among other products. While not a major brand in North America, be quiet! has had some popularity across the pond (particularly in their native Germany) and their retail presence has started to grow even in North America. So, today, we are looking at the be quiet! Dark Power Pro 11 850W which comes from be quiet! and FSP.

850W Of Powerful Dark Quietude?

The be quiet! Dark Power Pro 11 850W is just the second power supply we have ever seen from be quiet! and be quiet! is a brand that may not be that familiar to our North American readers. However, be quiet! has been a rather popular brand in Europe for some time now and has drawn a rather loyal following due to their products seeming to embody "silence". That said, our first outing with be quiet! was the Pure Power 10 600W and, while that unit had a lot of things that looked good about it to start off with, it ended up falling short in our metrics. To be completely fair, though, part of that might well have been the units market segment. So, today we are back with another be quiet! unit that seems to be slated for a much higher end portion of the market than the Pure Power 10 600W was. Given that, we both expect the Dark Power Pro 11 850W to be a better performer and we have higher expectations for it to start with. This is one of those "damned if you do, damned if you don't" kind of moments it seems. However, before we move on, let's see what be quiet! has to say about this unit and see if our perceived market placement of this unit matches up with where be quiet! says they are targeting this product:

Legendary Silence, Cutting Edge Performance

It is a fact of the modern world that high technology requires constant refinement and unending improvement and that is even truer for those who would be leaders. Dark Power Pro power supplies are renowned as the world’s quietest and most efficient high-performance PSUs. The Dark Power Pro 11 850W model takes that a step further with a power conversion topology that delivers 80PLUS Platinum performance, add to that an unparalleled array of enhancements that augment this unit’s compatibility, convenience of use, reliability, and safety, and the result is the most technologically-advanced power supply be quiet! has ever built.

80PLUS Platinum certification and up to 94% power conversion efficiency

Virtually inaudible operation thanks to a broad array of optimizations, including the use of a be quiet! SilentWings 135 Fan

SilentWings fan features an advanced fan frame, an airflow-optimized fan blade, fluid-dynamic bearing with copper core and a high-quality 6-pole motor for less vibration

The funnel-shaped fan opening of the PSU case is significant big and allows high airflow intake

850 Watts of continuous power provide intensive power reserves for demanding computing applications

Overclocking key allows switchover between quadruple independent 12V-rail mode and high-performance single-rail operation

NVIDIA SLI Ready and AMD CrossFireX certifications allow you to build powerful Multi-GPU systems with confidence

Cable management with extra long cable reach simplifies component installation and reduces annoying clutter, increasing airflow and improving cooling in even the largest PC cases

Product conception, design and quality control in Germany

With that said, let's take a look at what we get when we purchase the be quiet! Dark Power Pro 11 850W power supply in terms of documentation, accessories, cable count, rail layout, output characteristics, and general build quality.