Key Specifications
Choose one or multiple features to search for items that have the same specifications.Technical details | |
Sustainability compliance | ![]() |
Sustainability certificates | ENERGY STAR, ErP |
Ports & interfaces | |
Motherboard power connector | 20+4 pin ATX |
Floppy drive power connector | 1 |
Number of SATA power connectors | 3 |
Peripheral (Molex) power connectors (4-pin) | 2 |
CPU P4 connector (4-pin) | 1 |
PCI Express power connectors (6+2 pin) | 1 |
Cabling type | Non-Modular |
Motherboard power cable length | 35 cm |
SATA power cable length | 300,450,600 mm |
CPU power cable length | 35 cm |
Peripheral (Molex) power cable length | 300,450 mm |
PCI Express power cable length | 40 cm |
Floppy disk drive cable length | 60 cm |
Weight & dimensions | |
Weight | 1.1 kg |
Height | 65 mm |
Width | 85 mm |
Depth | 175 mm |
Energy management | |
Peak power | 350 W |
Input current | 4/2 A |
Nominal power | 300 W |
Efficiency | 90.6% |
Hold time | 29 ms |
Power protection features | Over current, Over power, Over voltage, Short circuit, Under voltage |
Power factor | 0.98 |
Power Factor Correction (PFC) type | Active |
Combined power (+3.3V) | 103 W |
Combined power (+12V) | 288 W |
Combined power (+5V) | 103 W |
Max output current (+3.3V) | 18 A |
Max output current (+5V) | 18 A |
Max output current (-12V) | 0.3 A |
Max output current (+5Vsb) | 3 A |
AC input frequency | 50 - 60 Hz |
AC input voltage | 100 - 240 V |
Max output current (+12V2) | 13 A |
Max output current (+12V1) | 13 A |
Total power | 300 W |
Maximum input current (@110V) | 4 A |
Maximum input current (@220V) | 2 A |
Packaging data | |
Package weight | 1.43 kg |
Package depth | 80 mm |
Package height | 215 mm |
Package width | 159 mm |
Package type | Box |
Certificates | |
80 PLUS certification | 80 PLUS Gold |
Design | |
Product colour | Black |
Number of fans | 1 fan(s) |
Cooling type | Active |
Fan diameter | 8 cm |
Performance | |
Mean time between failures (MTBF) | 100000 h |
Safety | CE, CB, TÜV, CU |
Noise level | 21.7 dB |
Purpose | PC |
ATX version | 2.52 |
EPS version | 2.92 |
Power supply unit (PSU) form factor | TFX |
Logistics data | |
Shipping (inner) case width | 27.5 cm |
Shipping (inner) case length | 47.4 cm |
Shipping (inner) case height | 19.5 cm |
Shipping (inner) case gross weight | 9.39 kg |
Products per shipping (inner) case | 6 pc(s) |
Harmonized System (HS) code | 84733020 |
EAN | 4260052188293 |
Warranty | 5 years |
The be quiet! TFX Power 3 300W is engineered for compact and media PCs, delivering a perfect balance of power and efficiency with its 80 PLUS Gold certification. Achieving up to 91.7% efficiency, this power supply unit not only reduces energy costs but also ensures a stable and reliable power output, thanks to its strong dual 12V rails. Designed with a focus on silent operation, the TFX Power 3 features an 80mm temperature-controlled fan that minimizes noise to a remarkably low level, making it an excellent choice for any quiet computing environment.
With a continuous output of 300W, the TFX Power 3 supports demanding peripherals such as high-performance graphics cards with its 6+2 pin PCIe connector. Built with high-quality Japanese capacitors and reinforced with comprehensive protective measures against overcurrents, overvoltages, and short circuits, this model guarantees not just efficiency but also safety and durability for your system. Whether you are building a gaming PC or setting up a workstation, the TFX Power 3 provides the reliable power and features you need.
Key Features- 300W continuous power output
- 80 PLUS Gold certification for high energy efficiency (up to 91.7%)
- Compact TFX form factor, ideal for smaller builds
- Dual 12V rails for stable power distribution
- 6+2 pin PCIe connector for powerful GPUs
- Temperature-controlled 80mm fan for quiet operation (max 21.7 dB(A))
- Standby power draw of less than 0.17 watts
- Built-in safety features: OCP, OVP, SCP protection
- High-quality Japanese capacitors for durability
- 3-year manufacturer's warranty
- be quiet! TFX Power 3 300W power supply unit
- Power cord
- Mounting screws
- User manual
- Cable ties
Estimated delivery: 23.04 - 25.04
Today: Closed (Good Friday)
Estimated delivery: 23.04 - 25.04
Today: 09:00 - 17:00
Estimated delivery: 23.04 - 25.04
Today: Closed (Good Friday)
Estimated delivery: 23.04 - 25.04
Today: Closed
Estimated delivery: 23.04 - 25.04
Today: Closed (Good Friday)
Estimated delivery time: 23.04 - 25.04
Estimated delivery time: 24.04 - 25.04
Estimated delivery time: 23.04 - 24.04
Estimated delivery time: 24.04 - 25.04
Estimated delivery time: 24.04
Estimated delivery time: 24.04