be quiet! System Power 9 BN247
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Power supply from the famous German brand Be quiet. The model is certified according to the 80 PLUS BRONZE standard and is approved for use in computer systems with an Energy Star 6.1 power class. The device is implemented in a case with a typical ATX size. The wiring harness is built-in, there are 2 12V power lines. The maximum power reaches 600W, while in standby mode, this model consumes only 0.13W.
The Be quiet System Power 9 600W is actively cooled by a 120 mm fan, the speed of which directly depends on the load on the PC hardware, due to which, in particular, the power supply has a minimum noise level. The working life claimed by the manufacturer is within 100,000 hours. Another important feature of the model is the use of DC-to-DC technology in the circuit solution, which makes it possible to adjust the output current parameters at a very fine level. Stable and uninterrupted operation of the PSU is ensured by a full range of protective systems, from overheating and overload to protection against short circuit and high / low voltage. This model allows you to power several powerful video cards at once.
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!.
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!.
Buy be quiet! System Power 9 BN247
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be quiet! System Power 9 power supply unit 600 W 20+4 pin ATX ATX Blac BN247 | £56.42 |  | |||
| £67.70 |  | ||||
be quiet! System Power 9 power supply unit 600 W 20+4 pin ATX ATX Black BN247 | £75.99 |  | |||
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
750 W, 24+8+8(4+4) pin, 4 x 6+2 pin, SATA 6, Molex 1, ATX, Efficiency 89 %, warranty 5 years
400 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 2, ATX, Efficiency 89 %, warranty 3 years
600 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 6, Molex 2, ATX, Efficiency 89 %, warranty 3 years
400 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 2, ATX, semi-modular, Efficiency 89 %, warranty 3 years
450 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
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 |
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 |
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 none Evgeniy: use be quiet! BN246 few months |
good power supply even if my computer consumes 550 I took with a reserve of 600 so that if a thunderstorm hits there would be no hemorrhoids price and quality also quiet at all you can't hear even though I have very good hearing no Ivan Peremenov : use be quiet! BN247 less than month |
3 out of 11 user review(s) shown
8 more user review(s)
be quiet! System Power 9 configurations
| Price for be quiet! System Power 9 | ||||
|---|---|---|---|---|
| be quiet! System Power 9 BN245 | from £41.41 | 3 offers | |
| be quiet! System Power 9 BN246 | from £48.73 | 7 offers | |
| be quiet! System Power 9 BN247 | from £56.42 | 3 offers | |
Video reviews
Be Quiet System Power 9 CM 600W PSU Power Supply Unit Review
6 August 201920 836 view
Be Quiet's System Power U9 - Good entry level PSU? | Hardware Sugar
20 July 20215 875 view
be quiet! System Power 9 400W PSU Unboxing (with peel, and pcie connector rant)
5 March 20231 111 view
We recommendCompare using chart →
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 2, ATX, Efficiency 92 %, certificate 80+ Gold, warranty 5 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 8, Molex 3, ATX, Efficiency 90 %, certificate 80+ Gold
650 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 89 %, warranty 3 years
500 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 2, ATX, Efficiency 89 %, warranty 3 years
700 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 85 %, certificate 80+ Gold, warranty 2 years
700 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 7, Molex 2, ATX, Efficiency 85 %, warranty 2 years
700 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 5, ATX, Efficiency 86 %, warranty 3 years
750 W, 24+8 (4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, Efficiency 88 %, warranty 5 years
700 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 5, ATX, Efficiency 86 %, backlight, warranty 5 years