£45.00
 
 
 
Current Stock Level
 
 

400W PSU - BE QUIET! System Power 9 - 80+ Bronze (Mid/High Gaming)

 
 
 
 
Power Rating 400W
Cooling 120mm Fan
SATA Connectors 6
Molex Connectors 2
PCI-E Power 2 x 6+2-Pin
CE Approved Yes
Voltage Range 200 - 240V
 
 

SYSTEM POWER 9

500W

Proven Reliability and Good Efficiency

be quiet! System Power 9 400W offers renowned be quiet! reliability and quietness for price-conscious PC builders.

  • Rock-solid stability with two strong 12V-rails
  • DC-to-DC technology for tight voltage regulation
  • Multi-GPU support with two PCIe connectors
  • Temperature-controlled 120mm fan reduces system noise
  • Stand-by drain of less than 0.15 watts
  • 80PLUS® Bronze efficiency (up to 89%)
  • Attractive black sleeved cables
  • Complete suite of top safety features
  • Meets latest Intel® C6/C7, ErP and Energy Star 6.1 guidelines
  • 3-year manufacturer’s warranty
  • Product conception, design and quality control in Germany
General data
Model System Power 9 | 400W
Continuous power (W) 400
Peak power (W) -
Form factor ATX 12V Version 2.4
Form factor EPS 12V -
Modular cable management -
Topology DC-DC
Wire-free design (DC-side) -
Voltage (Vac) 200-240
Frequency (Hz) 50
Input current (A) 4
PFC active
Power factor at 100% load >0.95
Compliant to Intel C6/C7
Power consumption in standby (W) <0.15
Average life time (h / 25°C) 100.000
Operating temperature up to (°C) 40

Infographics

Output

12V rails (multi-rail operation) 2
12V single rail operation -
Overclocking key -
+3.3V (A) 24
+5V (A) 15
+12V1 (A) 24
+12V2 (A) 20
+12V3 (A) -
+12V4 (A) -
+12V5 (A) -
+12V6 (A) -
-12V (A) 0.3
+5Vsb (A) 3
Max. combined power 12V (W) 456
Max. combined power 3.3V + 5V (W) 110
Hold-up time (ms @ 100%) 17 @ 75% load

Fan / Cooling technology

Fan type high-quality fan
+SilentWings -
Motor technology 4-pole fan motor
Bearing technology Sleeve
Fan size (mm) 120
Max. fan speed (rpm), temperature-dependent 2,100
Temperature control for case fans -
dB(A) at 20% load 11.1
dB(A) at 50% load 13.6
dB(A) at 100% load 28.2

Protection

OCP (over current protection)
OVP (over voltage protection)
UVP (under voltage protection)
SCP (short circuit protection)
OTP (over temperature protection)
OPP (over power protection)

Safety certification

CECBTÜV✓Nemko (N)-Semko (S)-Fimko (FI)-Demko (D)-FCC-cRUus-
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