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The SFX Power 3 450W 80PLUS Bronze from Be Quiet! has an 80 PLUS Bronze certification and its SFX format makes it suitable for mini PCs and multimedia PCs with PCIe graphics card support. The 12V rail design contributes to high stability.
Power Supply 450W SFX12V 3.42 / EPS12V 2.92 80PLUS Bronze
The SFX Power 3 450W 80PLUS Bronze from Be Quiet! has an 80 PLUS Bronze certification and its SFX format makes it suitable for mini PCs and multimedia PCs with support for PCIe graphics cards. The 12V rail design contributes to high stability as the processor is powered by an independent rail. A PCIe connector is included for demanding peripherals such as graphics cards. This makes the SFX Power 3 450W Bronze the ideal power supply for anyone looking for enough power to support small systems while producing little noise.
The temperature-controlled fan ensures quiet operation and produces little waste heat. And because the SFX Power 3 450W Bronze meets the latest safety standards, it protects your PC from overcurrent, overvoltage, undervoltage, short circuits, overloads and similar faults.
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General information |
Product name |
be quiet! SFX Power 3 450W 80PLUS Bronze |
Brand |
be quiet! | |
Model |
BN321 | |
Power and Efficiency |
Power |
450 W |
80 PLUS certification |
Yes | |
80 PLUS certification |
80 PLUS Bronze | |
Connectivity |
Modular |
No |
Modularity |
Non-modular | |
Power connector(s) |
1 X +12V (Power supply P8 - 2 x P4) | |
| 3 X Serial ATA power supply | ||
| 1 X ATX 20 + 4 Pin | ||
| 1 X Molex Floppy Disk 4 Pin Female | ||
| 2 X Molex (4 Pin) Female | ||
| 1 X PCI Express 6 + 2 Pin | ||
Configurator |
PSU-CM compatibility |
+12V P4 |
| +12V P8 | ||
Cooling |
Fan size |
80mm |
Silent |
Yes | |
Power supply type (PC) |
Active | |
Design |
Power format |
SFX |
Power supply standard |
EPS12V | |
| SFX | ||
ATX 3.0 |
No | |
ATX 3.1 |
No | |
Multi-GPU |
None | |
Typical use |
Desktop computer | |
Physical characteristics |
Color |
Black |
LED RGB |
No | |
Height |
63.5 mm | |
Width |
125 mm | |
Length |
100 mm | |
Warranties |
Commercial warranty |
Seller 3 years |
Legal warranty |
See terms & conditions |
See all be quiet! products
Product referenced on 27 Apr 2021
It's been a long time since I bought a non-modular power supply and I remember why. The little Zalman M2 Mini is bursting at the seams. But then, SFX modular power supplies are over 600W and double the price of an equivalent ATX.
To power a Ryzen 5 3600 and an RTX 3050, 450W is more than enough, and never mind the aesthetics and cable management.
I was mistaken when I ordered it, thinking I could install it in a conventional box to save space, but I was quite wrong in my understanding of the signs... in short, this 'SFX' is now being used in 'aerial' mode to power my test bench. It's stupid, but it's found its purpose and I'm delighted with it!
I took this power supply for a small project, as I had some parts that were sitting around gathering dust and I had a small MicroATX case with the SFX power supply format but in a power supply, I took the whole thing and bought this power supply to mount an old PC Gamer that will be running Linux for small games, even if it's not a crazy configuration.
Good power supply, nothing special to report, good quality mid-range, quiet and efficient. It's been running 24 hours a day for months without a hitch.
This is the first power supply I've bought in over 15 years, and I didn't know this SFX format until 1 month before ordering this product. For me, it is very satisfactory, the noise is rather contained, and the price is very competitive.
I use it to power a RX 6400 low profile (the XFX swift 105) on a Ryzen 5700G (I know the "G" was not necessary but I took advantage of a good opportunity) + in a very small HTPC type ITX case, the Silverstone ML05b, I have no particular problem with this power supply. Everything is fine.
For the case, it's another story, the air flow is complicated to manage and my setup heats up a bit too much. But it's not the fault of this power supply!
Good product, and thank you LDLC, you are great.
In the same universe: sfx *
