be quiet! BN229, 300 W, 110 - 240 V, 330 W, 50 - 60 Hz, 4 A, +12V1,+12V2,+3.3V,+5V,+5Vsb,-12V

be quiet! BN229 power supply unit 300 W 20+4 pin ATX TFX Black

From £76.99
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be quiet! BN229 power supply unit 300 W 20+4 pin ATX TFX Black

19/05/2025*
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*Date of last price update
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Product Information

Compact and Silent Energy

TFX Power 2 300W Gold, the advanced, high-efficiency be quiet! compact PSU gives you more for your mini or media PC. It supports the latest high-efficiency standards while providing solid voltages and enough power to support a discrete PCIe graphics card.

New and improved features include:

- Certified 80PLUS Gold efficiency (up to 91%).
- Strong dual 12V-rails for high stability and PCIe graphics support.
- High-quality temperature-controlled 80mm fan reduces system noise.
- Sleeved cables up to 65cm long, with 6-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 compact PC systems that perform beyond the ordinary, with the best possible combination of features, reliability, quietness and high efficiency, choose TFX Power 2 300W Gold.

Power Supply Units be quiet!
Product
Name
be quiet! BN229 power supply unit 300 W 20+4 pin ATX TFX Black
Category
Power Supply Units
Brand
be quiet!
Power
Total power
300 W
AC input voltage
110 - 240 V
Peak power
330 W
AC input frequency
50 - 60 Hz
Input current
4 A
Maximum input current (@110V)
+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factor
0.9
Power Factor Correction (PFC) type
Active
Combined power (+3.3V)
103 W
Combined power (+12V)
264 W
Combined power (+5V)
103 W
Combined power (-12V)
3.6 W
Combined power (+5Vsb)
15 W
Max output current (+3.3V)
21 A
Max output current (+12V1)
13 A
Max output current (+12V2)
13 A
Max output current (+5V)
15 A
Max output current (-12V)
0.3 A
Max output current (+5Vsb)
2 A
Hold time
16 ms
Efficiency
91.6%
Power protection features
Over current, Over power, Over voltage, Short circuit, Under voltage
Operational conditions
Operating temperature (T-T)
0 - 40 °C
Weight & dimensions
Width
85 mm
Depth
185 mm
Height
65 mm
Weight
1.2 kg
Ports & interfaces
Motherboard power connector
20+4 pin ATX
Peripheral (Molex) power connectors (4-pin)
2
Number of SATA power connectors
4
CPU P4 connector (4-pin)
1
Floppy drive power connector
1
Floppy disk drive connector
Yes
Cabling type
Non-Modular
Packaging data
Manual
Yes
Package width
190 mm
Package depth
85 mm
Package height
159 mm
Package weight
1.5 kg
Other features
Noise level (silent mode, <30%)
12.7 dB
Noise level (quiet mode, 50%)
14.5 dB
Noise level (full-load mode, 100%)
26.5 dB
Warranty card
Yes
Performance
Purpose
PC
Power supply unit (PSU) form factor
TFX
80 PLUS certification
80 PLUS Gold
Noise level
26.5 dB
Mean time between failures (MTBF)
100000 h
Design
Product colour
Black
Cooling type
Active
Fan diameter
8 cm
Number of fans
1 fan(s)
Fan speed
2003
Technical details
Sustainability certificates
ENERGY STAR
Certificates
Compliance certificates
RoHS
Certification
CE, CB, TÜV
NOTE: The above information is provided for your convenience only, and we cannot guarantee its accuracy with the seller.

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