be quiet! System Power 9

400 W
Price in EUR including VAT, free shipping
21Ratings
Delivered Fri, 27-12
7 items in stock

Product details

The be quiet! System Power 9 CM offers the reliable and quiet operation known for be quiet! and is perfectly suited for PC building. It provides a stable and reliable power supply for CPU and GPU.
The power supply is equipped with two independent 12V lines and supports graphics card configurations with two PCI Express connectors. The DC/DC converter provides strong voltage regulation - even during heavy cross-loads. This makes the power supply a reliable companion for the next generations of processors and graphics cards.

Key specifications

Form factor
ATX
80 PLUS certificate
Bronze
Modularity
Partially modular cable management
Internal connection options
15-pin S-ATA (5x), 
20+4 PIN ATX power connector (1x), 
4-pin floppy (1x), 
4+4-pin 12V (1x), 
6+2-pin PCI Express (2x)
Item number
11918093

General information

Manufacturer
be quiet!
Category
Power Supply PC
Manufacturer no.
BN300
Release date
24.7.2019
External links
Manufacturer's site (de)

Colour

Colour group
Black
Exact colour description
Black

Power supply properties

Form factor
ATX
Efficiency
89 %
80 PLUS certificate
Bronze
Modularity
Partially modular cable management

Power supply connectors

Internal connection options
15-pin S-ATA (5x), 
20+4 PIN ATX power connector (1x), 
4-pin floppy (1x), 
4+4-pin 12V (1x), 
6+2-pin PCI Express (2x)

Cooling properties

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

Safety

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

Power supply

Power
400 W

Scope of delivery

Scope of delivery
PCIe, 
SATA

Product dimensions

Length
14 cm
Width
15 cm
Height
8.60 cm
Weight
1490 g

Package dimensions

Length
27 cm
Width
19.80 cm
Height
9.80 cm
Weight
2.08 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.be quiet!
  • 1.Corsair
  • 1.Fortron
  • 1.MSI
  • 1.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.Lian-Li

Return rate

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

Source: Galaxus
  • 1.MSI
  • 2.Intertech
  • 3.be quiet!
  • 4.NZXT
  • 4.Seasonic
Source: Galaxus