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be quiet! SFX Power 2 400W, 400W, 450W, 110 - 240V, 8 cm, 2579 RPM, Active

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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.

Power
Nominal power:	400W
Peak power:	450W
AC input voltage:	110 - 240V
AC input frequency:	50 - 60 Hz
Input current:	6A
Power factor:	0.9
Power Factor Correction (PFC) type:	Active
DC output voltage:	+12V1, +12V2, +3.3V, +5V, +5Vsb, -12V
Combined power (+3.3V):	120W
Combined power (+12V):	360W
Combined power (+5V):	120W
Combined power (-12V):	6W
Combined power (+5Vsb):	12.5W
Max output current (+3.3V):	21A
Max output current (+12V1):	17A
Max output current (+12V2):	16A
Max output current (+5V):	22A
Max output current (-12V):	0.5A
Max output current (+5Vsb):	2.5A
Hold time:	24 ms
Efficiency:	87.5%
Power protection features:	Over current, Over power, Over voltage, Short circuit, Under voltage
Cooling
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:
Performance
Form factor:	SFX
Purpose:	PC
Noise level:	33.9 dB
Noise level (silent mode, <30%):	20.7 dB
Noise level (quiet mode, 50%):	20.9 dB
Noise level (full-load mode, 100%):	33.9 dB
On/off switch:
Mean time between failures (MTBF):	100000h
Design
Colour of product:	Black
Operational conditions
Operating temperature (T-T):	10 - 50 °C
Weight & dimensions
Width:	10 cm
Depth:	12.5 cm
Height:	6.35 cm
Weight:	950g
Certificates
RoHS compliance:
80 PLUS certification:	80 PLUS Bronze
Energy Star certified:
Certification:	CE, CB, TÜV
Packaging data
Package width:	19.9 cm
Package depth:	19.5 cm
Package height:	7.5 cm
Package weight:	1.3 kg
Packaging content
Manual:
Warranty card: