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The be quiet! Straight Power 11 modular power supply offers quiet operation without compromising on quality. 80PLUS Gold certified, it offers excellent energy efficiency. An ideal choice for silent configurations, multi-GPU configurations, etc.
850W ATX 12V 2.4/EPS 12V 2.92 modular power supply.
The be quiet! Straight Power 11 modular power supply offers silent operation without compromising on quality. 80PLUS Gold certified, it offers excellent energy efficiency. An ideal choice for silent configurations, multi-GPU configurations, multimedia systems and systems for 3D photo/video applications.
Thanks to fully modular cable management, cables that serve no purpose in the system are left out. As a result, the system always looks neat and tidy. Thanks to the system's less cluttered layout, air flow is smoother, which means less noise and heat inside the enclosure. Installation is also much easier.
The top-of-the-range SilentWings 3 fan delivers superior airflow while producing very little noise. Thanks to its unique, optimised blade design, durable dynamic fluid bearing system and 6-pole motor, this fan eliminates operating noise, with the added bonus of minimal energy consumption and a very long service life. What's more, the funnel-shaped fan opening allows increased airflow for higher cooling performance.
The be quiet! Straight Power 11 850W is 80PLUS Gold certified, with an efficiency of up to 93%. Its main advantages: limited energy consumption and better cooled, quieter operation.
The Straight Power 11 850W operates wirelessly on the DC side inside the power supply unit. This results in improved cooling airflow and limited signal disruption thanks to the elimination of cables. This innovative design also means longer component life.
The use of LLC and Synchronous Rectifier (SR) technologies provides greater operating stability and improved voltage regulation. This power supply is equipped with a DC/DC converter that considerably improves voltage quality and stability at high loads. These technologies guarantee safe operation for the next generations of processors and graphics cards.
Select your criteria
General information |
Product name |
be quiet! Straight Power 11 850W 80PLUS Gold. |
Brand |
be quiet! | |
Model |
BN284 | |
Power and Efficiency |
Power |
850 W |
80 PLUS certification |
Yes | |
80 PLUS certification |
80 PLUS Gold | |
Connectivity |
Modular |
Yes |
Modularity |
100% modular | |
Power connector(s) |
1 X +12V (Power supply P8 - 2 x P4) | |
| 1 X +12V (Power supply P8) | ||
| 11 X Serial ATA power supply | ||
| 1 X ATX 20 + 4 Pin | ||
| 4 X Molex (4 Pin) Female | ||
| 4 X PCI Express 6 + 2 Pin | ||
Configurator |
PSU-CM compatibility |
+12V P4 |
| +12V P8 | ||
| +12V P8 and +12V P4 | ||
| +12V P8 and +12V P8 | ||
Cooling |
Fan size |
135mm |
Silent |
Yes | |
Power supply type (PC) |
Active | |
Design |
Power format |
ATX/EPS |
Power supply standard |
EPS12V | |
| ATX12V | ||
ATX 3.0 |
No | |
ATX 3.1 |
No | |
Multi-GPU |
SLI | |
| CrossFireX | ||
Typical use |
Desktop computer | |
Physical characteristics |
Color |
Black |
LED RGB |
No | |
Height |
86 mm | |
Width |
150 mm | |
Length |
170 mm | |
Weight |
3.04 kg | |
Warranties |
Commercial warranty |
Seller 3 years |
Legal warranty |
See terms & conditions |
See all be quiet! products
Product referenced on 23 Jan 2018
This Be Quiet! power supply meets all the criteria for a "Very good product" award!
The first important point is that it's quiet, and the second is that it's powerful and robust, which won me over!
It's good value for money and I'd recommend it for use in your home.
Quality power supply that's very quiet, no coil whine (no high-pitched noise).
The cables are good quality, the power supply is stable in terms of electrical voltage and doesn't heat up very much.
There's nothing to say, it's a quality product that I intend to keep for 8-10 years without any problem.
I wanted to have peace of mind knowing that this well-built power supply had all the connections I needed.
to power the RTX 4070 SUPER and i5 12600 KF
will allow me to power the next CPU / GPU upgrade without any worries.
This power supply was taken to replace an Enermax 750W that was showing signs of reaching the end of its life.
It worked for a week on a Ryzen 9 5950X + Radeon 6800XT configuration ... until I couldn't boot any more (CPU under-voltage problem when the configuration started up).
The power supply went into RMA. And I had to put the Enermax back in to be able to use the PC again.
Quiet power supply, does its job properly. The click when starting and stopping is normal, it's a contactor, because 850 Watts starts to make quite a lot of power, so contactor required.
In the same universe: be quiet! straight power 11 850w 80plus gold | be quiet! straight power 11 850w platinium
