Key Specifications
Choose one or multiple features to search for items that have the same specifications.| Technical details | |
| Sustainability certificates | ENERGY STAR |
| Ports & interfaces | |
| Floppy disk drive connector | ![]() |
| PCI Express connector | ![]() |
| Motherboard power connector | 20+4 pin ATX |
| Floppy drive power connector | 1 |
| Number of SATA power connectors | 4 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| EPS power connector (8-pin) | ![]() |
| ATX power connector (20+4 pin) | ![]() |
| CPU power connector (4+4 pin) | ![]() |
| CPU P4 connector (4-pin) | 1 |
| Cabling type | Non-Modular |
| Motherboard power cable length | 350 mm |
| Weight & dimensions | |
| Weight | 1.2 kg |
| Height | 65 mm |
| Width | 85 mm |
| Depth | 185 mm |
| Energy management | |
| Peak power | 330 W |
| Input current | 4 A |
| Nominal power | 300 W |
| Efficiency | 91.6% |
| Hold time | 16 ms |
| Power protection features | Over current, Over power, Over voltage, Short circuit, Under voltage |
| 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 (+5V) | 15 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 2 A |
| AC input frequency | 50 - 60 Hz |
| AC input voltage | 110 - 240 V |
| Max output current (+12V2) | 13 A |
| Max output current (+12V1) | 13 A |
| Total power | 300 W |
| Maximum input current (@110V) | +12V1,+12V2,+3.3V,+5V,+5Vsb,-12V |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 °C |
| Packaging data | |
| Package weight | 1.5 kg |
| Package depth | 85 mm |
| Package height | 159 mm |
| Package width | 190 mm |
| Manual | ![]() |
| Certificates | |
| Certification | CE, CB, TÜV |
| RoHS compliance | ![]() |
| 80 PLUS certification | 80 PLUS Gold |
| Compliance certificates | RoHS |
| Other features | |
| Warranty card | ![]() |
| Noise level (quiet mode, 50%) | 14.5 dB |
| Noise level (full-load mode, 100%) | 26.5 dB |
| Noise level (silent mode, <30%) | 12.7 dB |
| Design | |
| Product colour | Black |
| Illumination | ![]() |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan diameter | 8 cm |
| Fan speed | 2003 |
| Performance | |
| Mean time between failures (MTBF) | 100000 h |
| Form factor | TFX |
| Noise level | 26.5 dB |
| Purpose | PC |
| ATX version | 2.4 |
| Silent mode | ![]() |
| Power supply unit (PSU) form factor | TFX |
| EAN | 4260052183748 |
| Warranty | 2 years |
The be quiet! BN229 is a 300W power supply unit engineered for compact systems that utilize the TFX form factor. It provides consistent voltage regulation and operates with high efficiency, as indicated by its 80 PLUS Gold certification, which minimizes energy waste and heat generation. This makes it a suitable component for space-constrained media PCs or small office builds. The power supply includes a 20+4 pin motherboard connector, a 4+4 pin CPU connector, and a dedicated PCIe 6-pin connector to support a compatible discrete graphics card.
A temperature-controlled 80mm fan manages cooling, balancing thermal performance with low-noise output to maintain a quiet operating environment. The unit's non-modular design means all cables are permanently attached, a factor to consider for cable management within a compact TFX chassis. For component safety, the unit is equipped with a full suite of protection features, including over-current, over-power, and short-circuit protection. The build quality supports a mean time between failures of 100,000 hours under typical conditions.
Key Features:- 300W total power output with a 330W peak
- 80 PLUS Gold certified efficiency up to 91.6%
- Compact TFX form factor
- Non-modular cabling design
- One 80mm fan for active cooling
- Four SATA power connectors
- Features Active Power Factor Correction (PFC)
- Dimensions (W x H x D): 85 x 65 x 185 mm
Estimated delivery: 04.12 - 07.12
Today: 11:00 - 15:00
Estimated delivery: 04.12 - 07.12
Today: Closed
Estimated delivery: 04.12 - 07.12
Today: Closed
Estimated delivery: 04.12 - 07.12
Today: Closed
Estimated delivery: 04.12 - 07.12
Today: 10:00 - 14:00
Estimated delivery time: 04.12 - 07.12
Estimated delivery time: 05.12 - 07.12
Estimated delivery time: 04.12 - 06.12
Estimated delivery time: 05.12 - 07.12
Estimated delivery time: 05.12 - 06.12
Estimated delivery time: 05.12 - 06.12
- leaflet (English)


