
be quiet! TFX Power 3 300W Gold Power Supply (Dual Rail, Non-Mod, Black)
Specifications
At a glance
be quiet! TFX Power 3 300W Gold Power Supply (Dual Rail, Non-Mod, Black) is a 300W 80+ Gold non-modular TFX power supply. It is listed at one UK shop, which is not showing stock right now.
Quick answers
Where is be quiet! TFX Power 3 300W Gold Power Supply (Dual Rail, Non-Mod, Black) in stock?
One UK shop lists be quiet! TFX Power 3 300W Gold Power Supply (Dual Rail, Non-Mod, Black), but none is showing stock right now (checked 26 October 2026).
From the retailer
Compact and Silent EnergyTFX Power 3 300W Gold, 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 Gold the perfect choice for PCs with TFX form factor.
Very High Operating EfficiencyTFX Power 3 300W Gold is certified 80 PLUS Gold with an efficiency rating of up to 91.7%. With this outstanding energy efficiency, the TFX Power 3 300W Gold ensures low power consumption and by that lower costs alike.
For a Stable OperationThe dual 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 Gold the ideal PSU for all who strive for enough power to support small systems at low noise.
Optimized for Low-Noise OperationThe temperature-controlled fan ensures a quiet operation and produces little wasted heat. Since TFX Power 3 300W Gold meets the latest safety requirements, it defends the PC system against overcurrents, over- and undervoltage, short circuit, overloads and comparable failures.
Features Certified 80 PLUS Gold efficiency (up to 91.7%) Strong dual 12V-rails for high stability and PCIe graphics card support Two 6+2pin PCIe connectors for powerful GPUs 300W of continuous power High-quality temperature-controlled 80mm fan for low-noise operation of max. 21.7dB(A) Sleeved or flat black cables up to 60cm long Meets the latest safety and efficiency requirements Standby draw less than 0.17 watts Three-year manufacturer's warranty Product conception, design and quality control in GermanyWattage 300WConnectivity: Non-Modular80 Plus Rating 80 Plus GoldFan Size 80mmWarranty 3 Year WarrantyInput Current 4/2MTBF (Mean Time Between Failure) 100,000PFC (Power Factor Correction/Controller) Active PFCCables and connectorsSleeved cables P24Flat cables P4, PCIe, drivesMaximum cable length (cm) 60Cable length to motherboard (cm) 35No. of cables 5ATX-Motherboard (20+4-pin) 1P4 (CPU) 1PCI-e 6+2-pin (GPU) 2SATA 3PATA 2FDD (Floppy) 1Dimensions without cable (L x W x H) (mm) 175 x 85 x 65Weight (kg) 1.1Color Black
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