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be quiet! TFX 3 300W Bronze Power Supply

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TFX Power 3 300W Bronze: the upgraded be quiet! PSU for mini and media PCs at a reasonable price.

£49.99 (incl. VAT)
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SKU CA-14E-BQ
EAN 4260052188286
MPN BN322
MANUFACTURER be quiet!

COMPACT AND SILENT ENERGY

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.

  • Certified 80 PLUS® Bronze efficiency (up to 88.3%) for power saving operation
  • 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
  • Modern safety protections reliably defend against numerous failures
  • Standby draw less than 0.14 watts
  • Three-year manufacturer’s warranty
  • Product conception, design and quality control in Germany

General data

ModelTFX Power 3 300W Bronze
Continuous power (W)300
Peak power (W)350
Form factor ATX 12VTFX12V V2.52
Form factor EPS 12VVersion 2.92
Modular cable management-
Topology-
Wire-free design (DC-side)-
Voltage (Vac)100 - 240
Frequency (Hz)50 - 60
Input current (A)4A / 1.5A
PFCactive
Power factor at 100% load>0.96
Compliant to Intel C6/C7Yes
Power consumption in standby (W)<0.14
Average life time (h / 25°C)100,000
Operating temperature up to (°C)40

Output

12V rails (multi-rail operation)-
12V single rail operationYes
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 3.3V + 5V (W)85
Hold-up time at 100% load (ms)22 (@80%)
Power good signal100 - 150ms

Fan / Cooling technology

Fan typeHigh quality fan
+SilentWings-
Motor technology4-pole fan motor
Bearing technologyRifle
Fan size (mm)80
Max. fan speed (rpm), temperature-dependent1859
Temperature control for case fans-
dB(A) at 20% load14.6
dB(A) at 50% load15.4
dB(A) at 100% load29.1

Protection

OCP (over current protection)Yes
OVP (over voltage protection)Yes
UVP (under voltage protection)Yes
SCP (short circuit protection)Yes
OTP (over temperature protection)-
OPP (over power protection)Yes

Safety certification

CEYes
CBYes
TÜVYes
FCC-
cRUus-
cTUVus-
RCM (Australia)-
BSMI-
CU (Russia)Yes
CCC-

Eco / Efficiency

80 PLUS certificationBronze
Efficiency (%) at 230V, 20% load84
Efficiency (%) at 230V, 50% load88.3
Efficiency (%) at 230V, 100% load86.4

Environmental directives

ENERGY STAR8.0
ErPYes
WEEEYes
RoHSYes

Cables / Connectors

Nvidia® SLI (RTX 3090) ready-
Cable managementFixed
Sleeved cablesSleeved cables
Flat cablesYes
Cable length to mainboard (cm)35
Cable length to first connector (cm)30
Maximum cable length (cm)60
All-in-one cable (SATA/PATA/FDD)-
No. of cables5
ATX-Motherboard (20+4-pin)1
P8 (CPU)-
P4+4 (CPU)-
P4 (CPU)1
PCI-E 6-pin (GPU)-
PCI-E 6+2-pin (GPU)1
PATA2
SATA3
FDD (Floppy)1
External fan connectors-

Casing

Dimensions without cable (L x W x D), (mm)175 x 85 x 65
Weight (kg)0.9
ColorBlack

Accessories

Thumb screws-
ScrewsYes
Cable tiesYes
Velcro cable ties-
Box/Bag for PSU/Cables-
User manual languagesDE, EN, ES, FR, PL, RU
Dimensions
Length / Depth 175 mm
Width 85 mm
Height 65 mm
Weight 0.9 kg
Power Specifications
Total Power Output 300 W
Efficiency Class
80PLUS Efficiency 80 PLUS Bronze
Fan Specifications
Fan Size 80 mm
Colour
Primary Colour Black
Power Supply
PSU Format TFX
Internal Ports
6+2 Pin PCIe Power Connectors 1
SATA Power Connectors 3
4 Pin Molex Power Connectors 1
3 Years Warranty
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UK Delivery
Order by 5pm (Monday to Friday) or 3pm (Saturday) for Next Day Delivery*
*Exclusions and product restrictions apply
Full Delivery Information

International Delivery
Delivery to over 40 countries
Full Delivery Information

Returns
30 Day return and refund period
Full Returns Information

Christmas Delivery
We recommended ordering by Friday 20th December to avoid disappointment, however we will ship Monday 23rd December.
Christmas Delivery Information

Extended Christmas Returns
All orders placed between Friday 1st November and Friday 20th December qualify for extended Christmas returns. Terms & conditions apply.
Extended Christmas Returns Information

£49.99 (incl. VAT)
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