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be quiet! SFX Power 3 BN320

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be quiet! SFX Power 3 BN320
2021SFX (for compact systems)
300 W
24+4 pin
450 W
24+8 (4+4) pin
Main
Power300 W
Form factorSFX
Specs
PFCactive
Efficiency89 %
Cooling systemactive (fan)
Fan size80 mm
Fan bearingsliding
Certification80+ Bronze
EPS12V version2.92
Power connectors
MB/CPU power supply24+4 pin
SATA3
MOLEX2
PCI-E 8pin (6+2)1
Floppy
Cable systemnon-modular
Cable length
MB350 mm
CPU400 mm
SATA300 mm
MOLEX300 mm
PCI-E400 mm
Max. power
+3.3V16 А
+5V16 А
+12V125 А
-12V0.3 А
+5Vsb2.5 А
+12V300 W
+3.3V +5V85 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP, UVP, SIP
Noise level29 dB
Manufacturer's warranty3 years
Dimensions (HxWxD)64x125x100 mm
Weight0.84 kg
Added to E-CatalogJuly 2021
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog be quiet! 2025 - new arrivals, bestsellers, and the most relevant models be quiet!.
How to choose a power supply for a PCBasics of choosing a reliable and balanced power supply for your home, office and gaming computer

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Be Quiet BN320 SFX Power 3 300W

Strong 12V rail with 300W of continuous power 6+2 pin PCIe connector for GPU support High-quality temperature-controlled 80... moremm 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%)
Amazon.co.uk
Delivery: to United Kingdom
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£67.64
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be quiet! SFX POWER 3 300W power supply unit 20+4 pin ATX Black BN320

be quiet! SFX POWER 3 300W power supply unit 20+4 pin ATX Black
ComputersDeal.com
Delivery: in United Kingdom
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£57.08
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be quiet! SFX Power 3 300W Bronze Wired Power Supply - BN320 BN320

SFX Power 3 300W, the compact PSU from be quiet! that gives you more for your mini or media PC. It provides enough power to s... moreupport powerful PCIe graphics cards while offering the ideal combination of power, quietness and reliability. That makes it the perfect choice for compact PC systems that perform beyond the ordinary.
Awd-it.co.uk
Delivery: to United Kingdom
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£61.14
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be quiet! SFX POWER 3 300W power supply unit 20+4 pin ATX Black BN320

Compact and Silent Energy SFX Power 3 300W the first choice compact PSU for mini and media PCs with 80 PLUS&re... moreg; 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   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.    
Quzo.co.uk
Delivery: to United Kingdom
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£56.51
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be quiet! SFX POWER 3 300W power supply unit 20+4 pin ATX Black BN320

SFX Power 3 300W. the compact PSU from be quiet! that gives you more for your mini or media PC. It provides enough power to s... moreupport powerful PCIe graphics cards while offering the ideal combination of power. quietness and reliability. That makes it the perfect choice for compact PC systems that perform beyond the ordinary.
itsupplies.uk
Delivery: to United Kingdom
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£56.92
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Series be quiet! SFX (for compact systems)Compare using chart →
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be quiet! SFX Power 3 BN320
from £49.99 
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Video reviews
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from £133.14 
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PSU be quiet! BN320
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