be quiet! System Power 9 BN246
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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! 2026 - new arrivals, bestsellers, and the most relevant models be quiet!.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog be quiet! 2026 - new arrivals, bestsellers, and the most relevant models be quiet!.
Series be quiet! System Power (available)Compare using chart →
750 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
650 W, 24+8+4 pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 1, ATX, Efficiency 89 %, warranty 5 years
550 W, 24+8+4 pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 1, ATX, Efficiency 89 %, warranty 5 years
450 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 1, ATX, Efficiency 89 %, warranty 5 years
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, certificate 80+ Gold, warranty 5 years
500 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 2, ATX, Efficiency 89 %, warranty 3 years
450 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
750 W, 24+8+8(4+4) pin, 4 x 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
Model overview based on user reviews
The be quiet! System Power 9 series is highly praised for its exceptional quietness and efficient cooling, making it a top choice for users seeking a silent power supply. It offers excellent value for money with features like 80 PLUS Bronze Certification and a complete set of necessary cables. Users appreciate its reliable performance and quality build, with many noting the durability and quiet operation even under load. While some users mentioned minor issues with cable stiffness or extra wires, the overall consensus is that this power supply is a great option for budget gaming builds and mid-range systems, providing stable power output and high-quality components.
Pros
Cons
0 1 1 9 |
Excellent low-cost five hundred from a cool manufacturer. Bought to replace a broken power supply. Installation in the Aerocool PGS VS-4 case went without a hitch, with the lower location of the cable length was enough (case height 495 mm). For a relatively low price, we get a lot of goodies: 80 PLUS Bronze certification, active PFC, two 12 V lines and a set of all necessary connectors for a mid-range system. I want to note the very quiet operation of the fan. Even under load, it is faintly audible, and without load, to hear it, you need to bring your ear literally close. It is not possible to independently check the voltage stability along the lines during the load, but according to the reviews on the network, everything is fine with this and does not sink below 11.6. Well, a few words about the assembly itself: everything is very well done, the weaving of wires is neat, you can’t even immediately determine that this is a low-cost power supply unit. At the moment, it pulls i5-2500k with a slight overclock and GTX 970. The consumption of such a system at the peak is no more than 400 watts, the same PSU will give its honest 500 watts if necessary. In general, be quiet! really well done, they created an excellent, inexpensive and productive line of System Power 9. I am very pleased with the power supply, I think that it is better to throw in a little money and still buy be quiet !, and not some ultra-low-cost Chieftec. Excellent value for money 80 PLUS Bronze Certification Quiet Complete set of all necessary cables no  Evgeniy: use be quiet! BN246 few months |
I took 700 W for 5,200 rubles, I think that I couldn’t find a better one for myself, there are no complaints, I hope there won’t be any) I can’t say anything about the technical station, but the appearance and material are of high quality, black braided wires along their entire length, ideal for looking beautiful in the case, flexible wires It’s a pity that it’s not modular) The extra wires had to be stuffed under the box, and there are quite a few of them here) Zulu 148: use be quiet! BN248 less than month |
Absolute silence while the computer is running. Came to replace the FSP that worked for 13 years. quiet not yet use be quiet! BN246 less than month |
3 out of 11 user review(s) shown
8 more user review(s)
Video reviews
Be Quiet System Power 9 CM 600W PSU Power Supply Unit Review
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Be Quiet's System Power U9 - Good entry level PSU? | Hardware Sugar
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be quiet! System Power 9 400W PSU Unboxing (with peel, and pcie connector rant)
5 March 20231 154 view
We recommendCompare using chart →
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 1, ATX, Efficiency 91 %, certificate 80+ Gold, warranty 10 years
600 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 85 %, certificate 80+ Gold, warranty 2 years
600 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 4, ATX, Efficiency 86 %, backlight, warranty 5 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 7, Molex 2, ATX, Efficiency 88 %, warranty 3 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 4, ATX, Efficiency 90 %, warranty 5 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 85 %, warranty 3 years
450 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 3, Molex 2, SFX, Efficiency 89 %, warranty 3 years
