Be Quiet! Dark Power Pro 11 850W PSU

Based on their name, you probably have an idea that Be Quiet! aims to provide everyone with products that omit less noise as possible, and this is even under harsh conditions. The company has long been creating PSUs, and its devices are well-known in Europe, especially in Germany, where people prefer products that operate silently. Other than PSUs, Be Quiet! also offers cooling solutions, and just recently, the company entered the world of PC cases.

Today, we’re checking out the Dark Power Pro 11 850W PSU, which is Be Quiet!’s highly advanced PSU to date. With 850 Watts of endlessly available power, plus an overclocking key that can switch between single and four-rail operations. This PSU has enough reserve to support any multi-CPU or multi-GPU system you plan to build.

The company’s virtually quiet Silent Wings 3 fan, plus an exceptional array of noise-decreasing improvements, make the Dark Power Pro 11 one of the most silent PSUs in its category. The company also claims that the PSU’s design is for powerful applications that require significant compelling quietness.

And because of its full-bridge power design, the Dark Power Pro 11 850W PSU has earned the highest power-efficiency certification available. It is the 80 PLUS Platinum. So does this PSU sound like something you’d need? If that’s the case, continue reading to learn more about the product, its features, specifications, how well it performs, and if it’s something you need for your build.

Be Quiet! Dark Power Pro 11 850W PSU – What’s in the Box?

The Be Quiet! Dark Power Pro 11 850W PSU’s packaging is similar to that of the Dark Power Pro 10. In front, you will see an image of the PSU itself, along with the badge of 80 PLUS Platinum on the top-left portion of the box. Along with the badge, you will also see two icons that indicate the use of a modular cabling design and the Silent Wings fan.

You will see a description of the PSU’s features in different languages written on the box’s sides, while the back shows a scheme with the current connectors. It is also complete with the power specifications table, cable lengths, as well as the Dark Power Pro 11’s dimensions.

The Be Quiet! Dark Power Pro 11 850W PSU is entirely concealed by thick packaging foam to provide extra protection to the unit. Aside from the PSU, the box contains other accessories, including zip ties, Velcro straps, two sets of screws, as well as all the necessary cables and user manuals for configuration.

You will also find a bracket housing the overclock switch. However, if you don’t plan to use the bracket and prefer the single-rail mode setup, you can utilize the jumper wire included in the package.

The Product

Be Quiet! Dark Power Pro 11 850W PSU

The Be Quiet! Dark Power Pro 11 850W PSU has a black theme and features a dark matte finish that makes gives it a premium and stylish appearance. On the sides, you will find labels that show the unit’s model number, while the specifications are at the bottom. In front is a honeycomb-style mesh that adds to the PSU’s ventilation. Here, you will also find the power switch, and next to it is the power connector.

Since this is an 850W power supply unit, it has a large body that is more suitable for a large chassis. The rear modular panel features a lot of sockets, including the single white one, which is the overclocking key. Next to the panel is the 24-pin ATX connector. To further restrict the PSU from emitting noise, Be Quiet! Included rubber edges on the PSU for absorbing vibration, which is similar to its predecessor.

At the top, you will see the 135-millimeter fan that is blocked by a grille. This fan belongs to Be Quiet! ‘s Silent Wings 3 family, and its model number is SIW3-13525-HF. It is a high-quality fan that features fluid dynamic bearing optimized for low RPMs. Its blades’ design allows for more air to move through the power supply’s components to keep everything cool.

The Be Quiet! Dark Power Pro 11 850W PSU offers up to 850 Watts of continuous power and has a peak power of 950 Watts. It makes use of the 2.4 ATX 12V and the 2.92 EPS 12 Volt version for its form factor, and a full-bridge + LLC + SR + DC | DC topology.

It makes use of 100 – 240 Voltage (Vac), has a frequency of 50 – 60Hz, plus an input current (A) of 13 / 7. The PSU also has an active PFC with a > 0.99 power factor at 100% load and > 0.10-Watt power consumption during standby. Its average lifetime is 100.000 (h / 25-degrees Celsius) while the operating temperature reaches up to 40-degrees Celsius.

Product Features

80PLUS Platinum Certified

The Dark Power Pro 11 850W PSU is 80 PLUS Platinum certified and has an energy efficiency rating of 94%. These features provide a lot of advantages for your high-end system, which includes reduced power consumption and a cooler and more quiet operation. For its standby drain, it is lower than 0.1 Watts.

Equipped with Silent Wings 3 Fans

The Dark Power Pro 11 850W PSU features two Silent Wings 3 fans. One measures 135 millimeters, which works quietly due to its unique fan blade design. Aside from that, it also has a 6-pole fan and a unique fluid-dynamic bearing. These reduce vibration and consumption, as well as increase its life.

Funnel-Shaped Fan Opening for Better Cooling

The Dark Power Pro 11 850W PSU features a funnel-shaped fan inlet, which allows for increased air throughput. As a result, the PSU delivers higher cooling performance.

Ready for Overclocking

With the stable and robust 12V rails of the Be Quiet! Dark Power Pro 11 850W PSU, it is ready for overclocking. This PSU has an overclocking key that grants you full control by manually switching from the standard four 12V-rail operations to the massive single-rail mode.

Built with Premium Features

As mentioned, the Be Quiet! Dark Power Pro 11 850W has four independent 12V rails and 850 Watts of continuous power for maintaining a stable, excellent signal. It also has nine PCIe connectors for multiple GPU systems. Furthermore, the PSU can regulate up to four external fans.

Total Convenience with Semi-Modular Cables

The Be Quiet! Dark Power Pro 11 850W PSU has extra 120-millimeter long-sleeved cables and modular cable management. This design makes the installation of components easier by reducing clutter, which also results in increased airflow and better cooling. With that, the Dark Power Pro 11 850W PSU is an excellent choice even for the largest PC cases.

Advanced Technologies for Stable and Efficient Signal

The Dark Power Pro 11 850W comes with the advanced full-bridge, Synchronous Rectifier (SR), and LLC. With these technologies, the PSU provides exceptional signal stability and unmatched power efficiency. It also has a DC-to-DC conversion to tighten voltage regulation even during heavy cross-loading conditions. With that, you can rely on its operation until the next-gen graphics cards and processors.

105°C Japanese Capacitors

Be Quiet! used only the highest-quality components for the Dark Power Pro 11 850W PSU, and these include the Japanese capacitors in its chassis. The capacitors are 105°C rated to ensure its reliability, stability, and long life span.



The Be Quiet! Dark Power Pro 11 850W PSU is the most quiet power supply unit that can support a high-end gaming system and handle demanding tasks. While there are a lot of power supply units that claim to deliver whisper-quiet operation, these can barely handle heavy loads and demanding jobs, unlike the Dark Power Pro 11 850W PSU.

Aside from the excellent performance it delivers, it also has high-quality components that ensure its reliability through the years. Furthermore, it has a modular cabling layout that allows for an easy and organized installation.

If you’re looking for the best and most quiet power supply unit, we highly recommend the Be Quiet! Dark Power Pro 11 850W PSU.

Where to Buy

If you want the Be Quiet! Dark Power Pro 11 850W PSU, you can check out the company’s store locator. Here, you can find local and online dealers in your country.