be quiet! Straight Power 11 Gold

850 W
Price in EUR including VAT, free shipping
777Ratings
BrandMore from be quiet!
Delivered between 7/1/2025 and 10/1/2025
4 items ordered

Performance

Product details

The Straight Power 11 sets new standards for whisper-quiet systems without making even the slightest compromise in power supply. In developing this series generation, the German be quiet!
team placed particular emphasis on noise-optimised features and high-quality equipment. All this makes the Straight Power 11 Series quieter than ever and the best choice for building new systems or upgrading existing ones. Straight Power 11 is the first choice among premium power supplies.

The be quiet! straight power 11 sets new standards for whisper-quiet systems without making even the slightest compromise in power supply.

Almost inaudible SilentWings 3 135mm fan
Funnel-shaped air inlet on the power supply housing increases the air flow rate
Cordless design in the power supply unit on the DC side increases cooling and longevity
Fully modular cable management for maximum flexibility
80PLUS® Gold efficiency of up to 93
Two PCI Express connectors for powerful multi-GPU systems
Japanese 105°C capacitors ensure stable, reliable operation
Meets ErP and Energy Star 6.1 guidelines
Five years manufacturer's warranty
Product conception, design and quality control in Germany

Key specifications

Form factor
ATX
80 PLUS certificate
Gold
Modularity
Modular cable management
Internal connection options
15-pin S-ATA (11x), 
20+4 PIN ATX power connector (1x), 
3-pin (3x), 
4-pin floppy (1x), 
4-pin Molex (4x), 
4+4-pin 12V (1x), 
6+2-pin PCI Express (4x), 
8-pin EPS (1x)
Item number
7478934

General information

Manufacturer
be quiet!
Category
Power Supply PC
Manufacturer no.
BN284
Release date
13.3.2018

Colour

Colour group
Black
Exact colour description
Black

Power supply properties

Form factor
ATX
Efficiency
93 %
80 PLUS certificate
Gold
Modularity
Modular cable management

Power supply connectors

Internal connection options
15-pin S-ATA (11x), 
20+4 PIN ATX power connector (1x), 
3-pin (3x), 
4-pin floppy (1x), 
4-pin Molex (4x), 
4+4-pin 12V (1x), 
6+2-pin PCI Express (4x), 
8-pin EPS (1x)

Cooling properties

Cooling method
Active cooling
Number of fans
1 x
Fan diameter
135 mm
LED colour
without LED

Safety

Power protection features
EIA, 
OCP, 
OPP, 
OTP, 
OVP, 
SCP

Power supply

Power
850 W

Scope of delivery

Scope of delivery
EU plug

Product dimensions

Length
17 cm
Width
15 cm
Height
8.60 cm
Weight
3250 g

Package dimensions

Length
33.70 cm
Width
25.60 cm
Height
10.90 cm
Weight
3.46 kg

14-day cancellation right
30-day right of returnReturn policy
24 Months Statutory warrantyGuarantee provisions

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Power Supply PC» category have a defect within the first 24 months?

Source: Galaxus
  • 1.Corsair
  • 2.be quiet!
  • 2.Fortron
  • 2.MSI
  • 2.Xilence

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • 5.Corsair
  • 5.Thermaltake
  • 7.be quiet!
  • 7.Chieftec
  • 7.Enermax

Return rate

How often is a product of this brand in the «Power Supply PC» category returned?

Source: Galaxus
  • 1.MSI
  • 2.be quiet!
  • 2.Intertech
  • 4.Seasonic
  • 5.Corsair
Source: Galaxus