Article number: BN320

SFX POWER 3

300W

COMPACT AND SILENT ENERGY

SFX Power 3 300W, the first choice compact PSU for mini and media PCs with 80 PLUS® Bronze and PCIe graphics card support. SFX Power 3 300W offers the ideal combination of power, quietness and reliability.

  • Strong 12V rail with 300W of continuous power
  • 6+2 pin PCIe connector for GPU support
  • High-quality temperature-controlled 80mm fan for quiet operation of max. 29.4dB(A)
  • Sleeved or flat black cables up to 60cm
  • 80 PLUS® Bronze efficiency (up to 89.2%)
  • Meets the latest safety and efficiency requirements
  • Three-year manufacturer’s warranty
  • Product conception, design and quality control in Germany

STRONG 12V RAIL

For a stable PCIe graphics support

A PCIe connector provides power for a demanding graphics card. Safety protections defend against overcurrents, over- and undervoltages, short circuits and overloads, thus keeping your valuable components safe.

300 WATTS CONTINUOUS POWER OUTPUT

Ensures a steady and reliable operation

The SFX Power 3 can deliver 300W of continuous power. This ensures a steady and reliable operation even when your PC meets an unexpectedly heavy load.

QUIET AND EFFICIENT OPERATION

For mini or media PCs

The high-quality temperature-controlled 80mm fan allows quiet operations of max. 29.4dB(A). The 80 PLUS Bronze certification with an efficiency rating of up to 89.2% is convincing evidence of this PSU’s power saving operation.

All models at a glance:

Product Series

General data

ModelSFX Power 3 300W
Continuous power (W)300
Peak power (W)350
Form factorSFX12V Version 3.42
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)5 / 2
PFCactive
Power factor at 100% load>0.98
Compliant to Intel C6/C7
Power consumption in standby (W)<0.11
Average life time (h / 25°C)100,000
Operating temperature up to (°C)40

Infographics

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Output

12V rails (multi-rail operation)-
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 3.3V + 5V (W)85
Hold-up time at 100% load (ms)26.8 (@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-dependent1979
Temperature control for case fans-
dB(A) at 20% load14.4
dB(A) at 50% load14.4
dB(A) at 100% load29.4

Protection

OCP (over current protection)
OVP (over Voltage protection)
UVP (under Voltage protection)
SCP (short circuit protection)
OTP (over temperature protection)-
OPP (over power protection)
SIP (Surge & Inrush Protection)

Safety certification

CE
CB
TÜV
FCC-
cRUus-
cTUVus-
RCM (Australia)-
BSMI-
CU (Russia)
CCC-

Eco / Efficiency

80 PLUS certificationBronze
Efficiency (%) at 230V, 20% load84.4
Efficiency (%) at 230V, 50% load89.2
Efficiency (%) at 230V, 100% load88.1

Environmental directives

Energy Star8.0
ErP
WEEE
RoHs

Cables / Connectors

Nvidia® SLI (RTX 3090) ready-
Cable managementFixed
Sleeved cablesSleeved cables
Flat cablesP8 / PCIe / drives
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)100 x 125 x 64
Weight (kg)0.84
ColorBlack

Accessories

Thumb screws-
Screws
Cable ties
Velcro cable ties-
Box/Bag for PSU/Cables-
User manual languagesDE, EN, ES, FR, PL, RU
OCK slot bracket with switch / OCK jumper-
SFX-to-ATX adapter bracket-

Service

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

Logistics data, RRP

Article numberBN320
EAN code4260052188262
Dimensions, package (L x W x H), (mm)75 x 197 x 207
Gross weight, package (kg)1.19
Pieces per packaging unit6
Dimensions, shipping box (L x W x H), (mm)457 x 265 x 233
Gross weight, shipping box (kg)7.91
RRP (€)57.90

SFX POWER 3 | 300W
Article number: BN320

Images