Compact and quiet small size SFX power supply. This power supply is designed to complete ultra-compact Mini-ITX or Micro ATX computer systems. The model is equipped with an 80 mm fan, controlled by a special controller. The cooler is quiet, even at the maximum power load, the cooling system will not make noise louder than 33.8 dB. In general, such a device will allow you to supply electricity to a very productive PC using modern components with optimized power consumption.

computer power supply be quiet! The SFX Power 3 BN321 has a single 12V power line unit with all 450W of power available. Professional developers have worked hard on the electrical circuit, which is confirmed by the 80+ Bronze certificate. The power supply will not run hot, and idle power consumption is kept to a minimum. This power supply has a good gaming potential. Two PCIe 6 + 2 pin connectors are available for connecting a video card, which will allow you to install a modern graphics adapter with an optimized power supply on your PC.

Buy be quiet! SFX Power 3 BN321

All prices 9 →

When you make a purchase through links on our site, we may earn an affiliate commission.


	be quiet SFX Power 3 450W 80 PLUS Bronze efficiency power supply SFX BN321 BN321 Strong 12 V cable with 450 W power Two PCIe ports for powerful GPUs Coated cable or ribbon cable with up to 60 cm le... morength Temperature-controlled 80 mm Qualit fan for quiet system operation of max. 33.8 dB(A) Amazon.co.uk Delivery: to United Kingdom Report	£59.99 Buy in shop

	be quiet! SFX POWER 3 450W power supply unit 20+4 pin ATX Black BN321 CoolingFan diameter8 cmNumber of fans1 fan(s)Cooling typeActivePerformanceOn/off switchYesPower supply unit (PSU) form factor... moreSFX80 PLUS certification80 PLUS BronzePurposePCATX version3.42EPS version2.92SafetyCE, CB, TÜV, CUNoise level33.8 dBMean time between failures (MTBF)100000 hBearing technologyRifleHarmonized System (HS) code84733020Design80 PLUS certification80 PLUS BronzeSafetyCE, CB, TÜV, CUProduct colourBlackFan diameter8 cmOn/off switchYesNumber of fans1 fan(s)Cooling typeActivePowerTo ComputersDeal.com Delivery: in United Kingdom Report	£67.92 Buy in shop

	be quiet! SFX Power 3 450W Bronze Wired Power Supply Scan.co.uk Delivery: to United Kingdom Report	£59.99 Buy in shop

	be quiet! SFX POWER 3 450W power supply unit 20+4 pin ATX Black BN321 Compact and Silent Energy SFX Power 3 450W the first choice compact PSU for mini and media PCs with 80 PLUS&re... moreg; Bronze and PCIe graphics card support. SFX Power 3 450W offers the ideal combination of power quietness and reliability. - Strong 12V rail with 450W 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. 450 Watts Continuous Power Output Ensures a steady and reliable operation SFX Power 3 can deliver 450W 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 Report	£65.22 Buy in shop

	be quiet! SFX POWER 3 - 450W 80+ Bronze Non-Modular Power Supply Unit Clove.co.uk Delivery: to United Kingdom Report	£78.00 Buy in shop

4 more offer(s)

Series be quiet! SFX (for compact systems)Compare using chart →

be quiet! SFX L BN238

from £89.99

500 W, 24+8 (4+4) pin, 4 х 6+2 pin, SATA 6, Molex 3, SFX, modular, Efficiency 92 %, certificate 80+ Gold

compare

be quiet! SFX L BN239

from £98.22

600 W, 24+8 (4+4) pin, 4 х 6+2 pin, SATA 6, Molex 3, SFX, modular, Efficiency 92 %, certificate 80+ Gold

compare

be quiet! SFX Power 3 BN321

from £54.98

450 W, 24+8 (4+4) pin, 2 х 6+2 pin, SATA 3, Molex 2, SFX, Efficiency 89 %, warranty 3 years

compare

be quiet! SFX Power 3 BN320

from £49.99

300 W, 24+4 pin, 1 х 6+2 pin, SATA 3, Molex 2, SFX, Efficiency 89 %, warranty 3 years

compare

be quiet! SFX Power 3 BN321 (SFX POWER 3 450)

Buy be quiet! SFX Power 3 BN321

be quiet SFX Power 3 450W 80 PLUS Bronze efficiency power supply SFX BN321

be quiet! SFX POWER 3 450W power supply unit 20+4 pin ATX Black BN321

be quiet! SFX Power 3 450W Bronze Wired Power Supply

be quiet! SFX POWER 3 450W power supply unit 20+4 pin ATX Black BN321

be quiet! SFX POWER 3 - 450W 80+ Bronze Non-Modular Power Supply Unit