Article number: BN323

TFX POWER 3

300W Gold

COMPACT AND SILENT ENERGY

TFX Power 3 300W Gold: the upgraded be quiet! high-efficiency PSU for mini and media PCs with 80 PLUS® Gold certification and PCIe graphics card support.

  • Certified 80 PLUS® Gold efficiency (up to 91.7%)
  • Strong dual 12V-rails for high stability and PCIe graphics card support
  • 6+2pin PCIe connector 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
  • 3-year manufacturer’s warranty
  • Product conception, design and quality control in Germany

80 PLUS® GOLD CERTIFICATION

Very high operating efficiency

TFX 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.

STRONG DUAL 12V RAIL

For a stable operation

The 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.

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 Gold meets the latest safety requirements, it defends the PC system against overcurrents, over- and undervoltage, short circuit, overloads and comparable failures.

“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

All models at a glance:

Product Series

General data

ModelTFX Power 3 300W Gold
Continuous power (W)300
Peak power (W)350
Form factorTFX12V Version 2.52
Form factor EPS 12VVersion 2.92
TopologyActive Clamp
Digitally controlled-
Voltage (Vac)100 - 240
Frequency (Hz)50 - 60
Input current (A)4 / 2
Power factor at 100% load>0.98
Modern standby
Power consumption in standby (W)<0.17
Average life time (h / 25°C)100,000
Operating temperature up to (°C)40

Infographics

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Efficiency

80 PLUS certificationGold
Efficiency (%) at 230V, 2% load-
Efficiency (%) at 230V, 10% load82.7
Efficiency (%) at 230V, 20% load88.9
Efficiency (%) at 230V, 50% load91.7
Efficiency (%) at 230V, 100% load90.6

Fan and cooling technology

FanHigh quality fan
Fan size (mm)80
Bearing technologyRifle
Motor technology4-pole fan motor
Max. fan speed (rpm)1323
dB(A) at 10% load9.1
dB(A) at 20% load9.7
dB(A) at 50% load12.4
dB(A) at 100% load21.7

Output

Multi-rail operation (12V rails)2
12V single rail operation-
Overclocking key-
+3.3V (A)18
+5V (A)18
+12V1 (A)13
+12V2 (A)13
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)3
Max. combined power 12V (W)288
Max. combined power 12VHPWR (W)0
Max. combined power 3.3V + 5V (W)103
Hold-up time at 100% load (ms)29
Hold-up time at 80% load (ms)-
Power good signal (ms)100 - 150

Cables and connectors

Modular cables-
Sleeved cablesP24
Flat cablesP4, PCIe, drives
Maximum cable length (cm)60
Cable length to motherboard (cm)35
No. of cables5
ATX-Motherboard (20+4-pin)1
P4+4 (CPU)-
P8 (CPU)-
P4 (CPU)1
12VHPWR cables0
PCI-e 6+2-pin (GPU)1
PCI-e 6-pin (GPU)-
SATA3
PATA2
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 Star8.0
ErP
WEEE
RoHS
Triman

Scope of delivery

Thumb screws-
Screws
Cable ties
Velcro cable ties-
User manual languagesDE, 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)1.1
ColorBlack

Service

Warranty (Years)3
Express replacement service in first year-
International hotline / free of charge✓ / DE, FR, US

Logistics data and RRP

Article numberBN323
EAN code4260052188293
Dimensions, package (L x W x H), (mm)80 x 159 x 215
Gross weight, package (kg)1.4
Pieces per packaging unit6
Dimensions, shipping box (L x W x H), (mm)474 x 275 x 195
Gross weight, shipping box (kg)9.4
RRP (€)69.90

TFX POWER 3 | 300W Gold
Article number: BN323

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