Introduction
Proven Reliability and Good Efficiency
Specially designed by be quiet! with the price-concious PC builder in mind: System Power B9 350W (bulk) offers renowned be quiet! performance and quietness and makes it possible for you to build cost-effective and reliable systems.
Power
Total power
350 W
AC input voltage
200 - 240 V
AC input frequency
50 Hz
Input current
3 A
Power factor
0.95
Power Factor Correction (PFC) type
Active
Combined power (+3.3V)
103 W
Combined power (+12V)
324 W
Combined power (+5V)
103 W
Combined power (-12V)
3.6 W
Combined power (+5Vsb)
12.5 W
Max output current (+3.3V)
19 A
Max output current (+12V1)
20 A
Max output current (+12V2)
16 A
Max output current (+5V)
15 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
2.5 A
Hold time
17 ms
Efficiency
87%
Power protection features
Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces
Motherboard power connector
20+4 pin ATX
Motherboard power cable length
45 cm
Number of SATA power connectors
4
Number of PATA power connectors
2
SATA power cable length
400 mm
PCI Express power connectors (6+2 pin)
1
PCI Express power cable length
45 cm
CPU power connector (4+4 pin)
Y
CPU power cable length
45 cm
Cabling type
Non-Modular
Performance
80 PLUS certification
80 PLUS
Purpose
PC
Power supply unit (PSU) form factor
ATX
ATX version
2.4
Silent mode
Y
Certification
CE, CB, TÜV, RCM, CU
Design
Product colour
Grey
Fan diameter
12 cm
Number of fans
1 fan(s)
Illumination
N
On/off switch
Y
Packaging content
Cables included
AC
Weight & dimensions
Width
150 mm
Depth
140 mm
Height
86 mm
Weight
1.6 kg
Technical details
Sustainability certificates
RoHS, ENERGY STAR
Other features
Noise level (silent mode, <30%)
12.1 dB
Noise level (quiet mode, 50%)
12.3 dB
Noise level (full-load mode, 100%)
24.9 dB
