be quiet! TFX POWER 3 300W Bronze power supply unit 20+4 pin ATX Black
- Certified 80 PLUS® Bronze efficiency (up to 88.3%) for power saving operation
- Strong 12V-rail and PCIe graphics support
- 300W of continuous power
- High-quality temperature-controlled 80mm fan for low-noise operation of max. 29.1dB(A)
- Sleeved or flat black cables up to 60cm long
- Meets the latest safety and efficiency requirements
- Modern safety protections reliably defend against numerous failures
- Standby draw less than 0.14 watts
- Product conception, design and quality control in Germany
TFX Power 3 300W Bronze, the advanced be quiet! compact PSU gives you more for your mini or media PC. It supports the latest standards while providing solid voltages and enough power to support a PCIe graphics card. The combination of quiet operation and reliability make the TFX Power 3 300W Bronze the perfect choice for PCs with TFX form factor.
80 PLUS® BRONZE CERTIFICATION
Efficient operation
The 80 PLUS Bronze certification of TFX Power 3 300W Bronze with an efficiency rating of up to 88.3% is convincing evidence of this PSU’s power saving operation.
STRONG SINGLE 12V RAIL
For maximum power
The 12V rail design supports high stability as the CPU receives its power through an independent rail. For demanding peripherals like a graphics card, a PCIe connector is included. This makes the TFX Power 3 300W Bronze the ideal PSU for all who strive for enough power to support small systems at low noise.
QUIET AND SAFE
Optimized for low-noise operation
The temperature-controlled fan ensures a quiet operation and produces little wasted heat. Since TFX Power 3 300W Bronze meets the latest safety requirements, it defends the PC system against overcurrents, over- and undervoltage, short circuit, overloads and comparable failures.
| Power |
| Power protection features |
Over current, Over power, Over voltage, Short circuit, Under voltage |
| Hold time |
22 ms |
| Efficiency |
86.4% |
| Max output current (+5Vsb) |
2.5 A |
| Max output current (-12V) |
0.3 A |
| Max output current (+5V) |
16 A |
| Max output current (+12V1) |
25 A |
| Max output current (+3.3V) |
16 A |
| Combined power (+5V) |
85 W |
| Combined power (+12V) |
300 W |
| Combined power (+3.3V) |
85 W |
| Power Factor Correction (PFC) type |
Active |
| Power factor |
0.96 |
| Maximum input current (@220V) |
1.5 A |
| Maximum input current (@110V) |
4 A |
| Input current |
4/1.5 A |
| AC input frequency |
50 – 60 Hz |
| AC input voltage |
100 – 240 V |
| Peak power |
350 W |
| Total power |
300 W |
| Ports & interfaces |
| Cabling type |
Non-Modular |
| Floppy drive power connector |
1 |
| Floppy disk drive cable length |
60 cm |
| CPU power cable length |
35 cm |
| CPU P4 connector (4-pin) |
1 |
| PCI Express power cable length |
40 cm |
| PCI Express power connectors (6+2 pin) |
1 |
| Peripheral (Molex) power cable length |
300,450 mm |
| Peripheral (Molex) power connectors (4-pin) |
2 |
| SATA power cable length |
300,450,600 mm |
| Number of SATA power connectors |
3 |
| Motherboard power cable length |
35 cm |
| Motherboard power connector |
20+4 pin ATX |
| Performance |
| Mean time between failures (MTBF) |
100000 h |
| Bearing technology |
Rifle |
| Noise level |
29.1 dB |
| EPS version |
2.92 |
| ATX version |
2.52 |
| 80 PLUS certification |
80 PLUS Bronze |
| Power supply unit (PSU) form factor |
TFX |
| Purpose |
PC |
| Design |
| Number of fans |
1 fan(s) |
| Fan diameter |
8 cm |
| Cooling type |
Active |
| Product colour |
Black |
| Safety regulation & standards |
| Safety |
CE, CB, TÜV, CU |
| Certificates |
| Compliance certificates |
RoHS, WEEE |
| Weight & dimensions |
| Weight |
900 g |
| Height |
65 mm |
| Depth |
175 mm |
| Width |
85 mm |
| Packaging data |
| Package type |
Box |
| Package weight |
1.24 kg |
| Package height |
215 mm |
| Package depth |
80 mm |
| Package width |
159 mm |
| Technical details |
| Sustainability compliance |
Yes |
| Sustainability certificates |
ENERGY STAR, ErP |
| Logistics data |
| Harmonized System (HS) code |
84733020 |
| Shipping (inner) case length |
47.4 cm |
| Shipping (inner) case width |
27.5 cm |
| Shipping (inner) case height |
19.5 cm |
| Products per shipping (inner) case |
6 pc(s) |
| Shipping (inner) case gross weight |
8.25 kg |
- manual pdf
- leaflet
- Cables
