Article number: BN322
“We at be quiet! have a heart for mini and media PCs. TFX Power 3 is our love letter to those systems and it makes me happy to know, how many of them are equipped in such compact systems all over the world."
Christian Berndt, Technical Specialist
TFX POWER 3
300W BronzeCOMPACT AND SILENT ENERGY
TFX Power 3 300W Bronze: the upgraded be quiet! PSU for mini and media PCs with 80 PLUS® Bronze certification and PCIe graphics card support.
- Certified 80 PLUS® Bronze efficiency (up to 88.3%)
- Strong 12V-rail and PCIe graphics support
- 300W of continuous power
- One PCI express connector for GPU card support
- 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
- Standby draw less than 0.14 watts
- 3-year manufacturer’s warranty
- Product conception, design and quality control in Germany
Characteristics
80 PLUS® BRONZE CERTIFICATION
Efficient operationThe 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 powerThe 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 operationThe 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.
All models at a glance:
General data
| Model | TFX Power 3 300W Bronze |
| Continuous power (W) | 300 |
| Peak power (W) | 350 |
| Form factor | TFX12V Version 2.52 |
| Form factor EPS 12V | Version 2.92 |
| Topology | - |
| Digitally controlled | - |
| Voltage (Vac) | 100 - 240 |
| Frequency (Hz) | 50 - 60 |
| Input current (A) | 4 / 1.5 |
| Power factor at 100% load | >0.96 |
| Modern standby | ✓ |
| Power consumption in standby (W) | <0.14 |
| Average life time (h / 25°C) | 100,000 |
| Operating temperature up to (°C) | 40 |
Infographics
Efficiency
| 80 PLUS certification | Bronze |
| Efficiency (%) at 230V, 2% load | - |
| Efficiency (%) at 230V, 10% load | 78.2 |
| Efficiency (%) at 230V, 20% load | 84 |
| Efficiency (%) at 230V, 50% load | 88.3 |
| Efficiency (%) at 230V, 100% load | 86.4 |
Fan and cooling technology
| Fan | High quality fan |
| Fan size (mm) | 80 |
| Bearing technology | Rifle |
| Motor technology | 4-pole fan motor |
| Max. fan speed (rpm) | 1859 |
| dB(A) at 10% load | 14.1 |
| dB(A) at 20% load | 14.6 |
| dB(A) at 50% load | 15.4 |
| dB(A) at 100% load | 29.1 |
Output
| Multi-rail operation (12V rails) | - |
| 12V single rail operation | ✓ |
| Overclocking key | - |
| +3.3V (A) | 16 |
| +5V (A) | 16 |
| +12V1 (A) | 25 |
| +12V2 (A) | - |
| +12V3 (A) | - |
| +12V4 (A) | - |
| +12V5 (A) | - |
| +12V6 (A) | - |
| -12V (A) | 0.3 |
| +5Vsb (A) | 2.5 |
| Max. combined power 12V (W) | 300 |
| Max. combined power 12VHPWR (W) | 0 |
| Max. combined power 3.3V + 5V (W) | 85 |
| Hold-up time at 100% load (ms) | 22 |
| Power good signal (ms) | 100 - 150 |
Cables and connectors
| Modular cables | - |
| Sleeved cables | P24 |
| Flat cables | P4, PCIe, drives |
| Maximum cable length (cm) | 60 |
| Cable length to motherboard (cm) | 35 |
| No. of cables | 5 |
| ATX-Motherboard (20+4-pin) | 1 |
| P4+4 (CPU) | - |
| P8 (CPU) | - |
| P4 (CPU) | 1 |
| 12VHPWR cables | 0 |
| PCI-e 6+2-pin (GPU) | 1 |
| PCI-e 6-pin (GPU) | - |
| SATA | 3 |
| PATA | 2 |
| FDD (Floppy) | 1 |
Protection
| OTP (over temperature protection) | - |
| OCP (over current protection) | ✓ |
| OPP (over power protection) | ✓ |
| SCP (short circuit protection) | ✓ |
| OVP (over Voltage protection) | ✓ |
| UVP (under Voltage protection) | ✓ |
| SIP (Surge & Inrush Protection) | ✓ |
Safety certification
| BSMI | - |
| CB | ✓ |
| CCC | - |
| CE | ✓ |
| cRUus | - |
| cTUVus | - |
| CU | ✓ |
| FCC | - |
| RCM | - |
| TÜV | ✓ |
| UKCA | - |
Environmental directives
| Energy Star | 8.0 |
| ErP | ✓ |
| WEEE | ✓ |
| RoHS | ✓ |
| Triman | - |
Scope of delivery
| Thumb screws | - |
| Screws | ✓ |
| Cable ties | ✓ |
| Velcro cable ties | - |
| User manual languages | DE, EN, ES, FR, PL, RU |
| OCK slot bracket with switch / OCK jumper | - |
| SFX-to-ATX adapter bracket | - |
Casing
| Dimensions without cable (L x W x H), (mm) | 175 x 85 x 65 |
| Weight (kg) | 0.9 |
| Color | Black |
Service
| Warranty (Years) | 3 |
| Express replacement service in first year | - |
| International hotline / free of charge | ✓ / DE, FR |
Logistics data and RRP
| Article number | BN322 |
| EAN code | 4260052188286 |
| Dimensions, package (L x W x H), (mm) | 80 x 159 x 215 |
| Gross weight, package (kg) | 1.24 |
| Pieces per packaging unit | 6 |
| Dimensions, shipping box (L x W x H), (mm) | 474 x 275 x 195 |
| Gross weight, shipping box (kg) | 8.25 |
| RRP (€) | 57.90 |