Manufacturer: be quiet!
Model: BN321
EAN: 4260052188279
The be quiet! SFX POWER 3 450W power supply unit is an excellent choice for PC enthusiasts looking for efficient and reliable power for their builds. With an 80 PLUS Bronze certification, this power supply offers up to 85.9% efficiency, delivering stable power to your system components while keeping energy costs down.
With a total power output of 450W, this power supply unit is suitable for a wide range of PC configurations. It features a 20+4 pin ATX motherboard power connector with a cable length of 35cm, as well as a range of other connectors including SATA power, peripheral (Molex) power, and PCI Express power connectors. The non-modular cabling type is designed to provide a neat and organized system build.
The be quiet! SFX POWER 3 450W power supply unit features an active cooling system with an 8cm fan that ensures quiet operation while keeping your system cool. The fan is equipped with rifle bearing technology, allowing for longer lifespan and quieter operation.
This power supply unit also features various safety and power protection features including over current, over power, over voltage, short circuit, and under voltage protection. It has a hold time of 21ms and a Mean Time Between Failures (MTBF) of 100,000 hours, ensuring reliable performance over an extended period of time.
Overall, the be quiet! SFX POWER 3 450W power supply unit is designed with high-quality components and attention to detail, ensuring stable and efficient power delivery to your system. It is an ideal choice for users seeking reliability, quiet operation, and energy efficiency.
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Price history
Power | |
Total power | 450 W |
Peak power | 500 W |
AC input voltage | 100 - 240 V |
AC input frequency | 50/60 Hz |
Input current | 6/2.5 A |
Maximum input current (@110V) | 6 A |
Maximum input current (@220V) | 2.5 A |
Power factor | 0.98 |
Power Factor Correction (PFC) type | Active |
Combined power (+3.3V) | 85 W |
Combined power (+12V) | 450 W |
Combined power (+5V) | 85 W |
Max output current (+3.3V) | 16 A |
Max output current (+12V1) | 37.5 A |
Max output current (+5V) | 16 A |
Max output current (-12V) | 0.3 A |
Max output current (+5Vsb) | 2.5 A |
Hold time | 21 ms |
Efficiency | 85.9 % |
Power protection features | Over current, Over power, Over voltage, Short circuit, Under voltage |
Performance | |
Purpose | PC |
Power supply unit (PSU) form factor | SFX |
80 PLUS certification | 80 PLUS Bronze |
ATX version | 3.42 |
EPS version | 2.92 |
Noise level | 33.8 dB |
Bearing technology | Rifle |
Mean time between failures (MTBF) | 100000 h |
Safety | CE, CB, TÜV, CU |
Ports & interfaces | |
Motherboard power connector | 20+4 pin ATX |
Motherboard power cable length | 35 cm |
Number of SATA power connectors | 3 |
SATA power cable length | 300,450,600 mm |
Peripheral (Molex) power connectors (4-pin) | 2 |
Peripheral (Molex) power cable length | 300,450 mm |
EPS power connector (4+4 pin) | |
PCI Express power connectors (6+2 pin) | 2 |
PCI Express power cable length | 55 cm |
Floppy drive power connector | 1 |
Floppy disk drive cable length | 60 cm |
Cabling type | Non-Modular |
Design | |
Product colour | Black |
Cooling type | Active |
Fan diameter | 8 cm |
Number of fans | 1 fan(s) |
On/off switch | |
Weight & dimensions | |
Width | 125 mm |
Depth | 100 mm |
Height | 64 mm |
Weight | 890 g |
Technical details | |
Sustainability certificates | ENERGY STAR, ErP, RoHS, WEEE |
Sustainability compliance | |
Logistics data | |
Shipping (inner) case width | 26.5 cm |
Shipping (inner) case length | 45.7 cm |
Shipping (inner) case height | 23.3 cm |
Shipping (inner) case gross weight | 8.19 kg |
Products per shipping (inner) case | 6 pc(s) |
Packaging data | |
Package width | 197 mm |
Package depth | 75 mm |
Package height | 207 mm |
Package weight | 1.24 kg |
Package type | Box |
Other features | |
Harmonized System (HS) code | 84733020 |