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be quiet! SFX Power 2 400W
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be quiet! SFX Power 2 400W


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Product Description

be quiet! SFX Power 2 400W

Compact and Silent Energy

SFX Power 2 400W is the upgraded high-power compact PSU from be quiet! that gives you more for your mini or media PC. It supports the latest efficiency standards, while providing solid voltages and enough power to support PCIe graphics.

Features include:

- Certified 80PLUS® Bronze efficiency (up to 89%).
- Strong dual 12V-rails with 400W output for high stability and PCIe graphics support.
- High-quality temperature-controlled 80mm fan reduces system noise.
- Sleeved cables up to 50cm with 6 2 pin PCIe connector.
- Meets Intel C6/C7, ErP 2014 and Energy Star 5.2 requirements; standby draw less than 0.25 watts.
- Full suite of safety features.
- Product conception, design and quality control in Germany.

For powerful compact PC systems that perform beyond the ordinary, with the ideal combination of power, quietness, features, reliability and efficiency, choose SFX Power 2 400W.

Nominal power 400 W
Peak power 450 W
AC input voltage 110 - 240 V
AC input frequency 50 - 60 Hz
Input current 6
Power factor 0.9
Power Factor Correction (PFC) type Active
Maximum input current (@110V) 12V1, 12V2, 3.3V, 5V, 5Vsb,-12V
Combined power ( 3.3V) 120 W
Combined power ( 12V) 360 W
Combined power ( 5V) 120 W
Combined power (-12V) 6 W
Combined power ( 5Vsb) 12.5 W
Max output current ( 3.3V) 21 A
Max output current ( 12V1) 17 A
Max output current ( 12V2) 16 A
Max output current ( 5V) 22 A
Max output current (-12V) 0.5 A
Max output current ( 5Vsb) 2.5 A
Power protection features Over current, Over power, Over voltage, Short circuit, Under voltage
Hold time 24 ms
Efficiency 87.5%

Fan diameter 8 cm
Number of fans 1
Fan speed 2579 RPM
Cooling type Active

Ports & interfaces
Motherboard power connector 20 4 pin ATX
Number of SATA power connectors 4
Peripheral (Molex) power connectors (4-pin) 1
PCI Express power connectors (6 2 pin) 1
CPU P4 connector (4-pin) 1
Floppy drive power connector 1
Floppy disk drive connector Yes

Noise level (quiet mode, 50%) 20.9 dB
Noise level (silent mode, <30%) 20.7 dB
Noise level (full-load mode, 100%) 33.9 dB
Form factor SFX
Purpose PC
On/off switch Yes
Noise level 33.9 dB
Mean time between failures (MTBF) 100000 h

Colour of product Black

Operational conditions
Operating temperature (T-T) 10 - 50 °C

Weight & dimensions
Width 100 mm
Depth 125 mm
Height 63.5 mm
Weight 950 g

80 PLUS certification 80 PLUS Bronze
Energy Star certified Yes
Certification CE, CB, TÜV
RoHS compliance Yes

Packaging data
Package depth 19.5 cm
Package width 19.9 cm
Package height 7.5 cm
Package weight 1.3 kg

Packaging content
Warranty card Yes
Manual Yes

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