be quiet! Pure Power 12 M BN343
 | Buy!  be quiet! Pure Power 12 M 750W Modular 80 Plus Gold Power Supply - BN343 BN343Awd-it.co.ukDelivery: to United Kingdom Report |
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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! Pure Power (reliability)Compare using chart →
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 94 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 94 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
650 W, 24+8+4 pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 2, ATX, modular, Efficiency 94 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
650 W, 24+8+4 pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 1, ATX, Efficiency 91 %, certificate 80+ Gold, warranty 10 years
1000 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 94 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 1, ATX, Efficiency 91 %, certificate 80+ Gold, warranty 10 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 2, ATX, modular, Efficiency 94 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 1, ATX, Efficiency 91 %, certificate 80+ Gold, warranty 10 years
1000 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 1, ATX, Efficiency 91 %, certificate 80+ Gold, warranty 10 years
1200 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 93 %, certificate 80+ Gold, warranty 10 years
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
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 2, ATX, modular, Efficiency 93 %, certificate 80+ Gold, warranty 10 years
650 W, 24+8+4 pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 2, ATX, modular, Efficiency 93 %, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 2 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 2, ATX, modular, Efficiency 93 %, certificate 80+ Gold, warranty 10 years
400 W, 24+4 pin, 2 x 6+2 pin, SATA 5, Molex 2, ATX, semi-modular, Efficiency 91 %, certificate 80+ Silver, warranty 3 years
400 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 2, ATX, Efficiency 91 %, certificate 80+ Silver, warranty 3 years
300 W, 24+8 (4+4) pin, 1 x 6+2 pin, SATA 4, Molex 2, ATX, Efficiency 87 %, warranty 5 years
1200 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 94 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
650 W, 24+8+8(4+4) pin, 4 x 6+2 pin, SATA 9, Molex 2, ATX, modular, Efficiency 92 %, certificate 80+ Gold, warranty 5 years
Model overview based on user reviews
The "be quiet! Pure Power 12 M" power supply unit is praised for its modular wiring system, silence, and reliability, making it a popular choice among users. It offers a long-term warranty and is noted for its quiet operation and efficient performance with up to 92.6% FCC. However, some users have experienced issues with stiff cables that are difficult to connect, particularly the 24-pin plug, which may be a concern for those with larger cases. Additionally, there was a report of a unit arriving with a broken seal, affecting the warranty. Despite these concerns, it is considered a good model for its price, especially for smaller builds, and is recommended for its silent operation and modular design.
Pros
Cons
1 1 1 4 |
I recommend it as a good model! Silence in the robot 93% FCC (up to 92.6% FCC), modular design, important, subtle components in the middle. The next day, the screen is like a bi showing the speed of the PC at a given moment.  PHOTO-PR: use be quiet! BN343 few months |
I took a 650W for a system with R5 5600 + RTX 4060. Installed it without problems, except for the very tight fit of all the cables, especially the largest 24 pin (visible in the photo). I was pushing with all my strength, the board and the case were bending)) I was already thinking it might crack, went to a specialist, and he said, "Well, what do you expect, it's new," but a friend recently built a PC with a PSU from Gigabyte and all the cables plugged in easily. I saw reviews that some people didn't have enough cable length, but my case is mATX format, and I didn't experience this issue, maybe it's from users with ATX boards and consequently larger cases. Otherwise, I have no complaints about the PSU, it's been working for a little over 2 months without issues. Long-term warranty Quiet Reliable Modular If you have a large case for full-sized ATX boards, the length of the native wires might not be sufficient. Be careful. The 24-pin plug inserts very tightly, but this might be a motherboard issue.  Sergiy: use be quiet! BN342 few months |
I wanted a reliable PSU, as a friend had a PSU without a certification with limited safety features. It burned out. I was thinking of getting a Chieftec Polaris PPS-750FC, but was recommended to get be quiet! Pure Power 12 M BN343. I went with Be quiet. and I sleep peacefully :) - quiet operation - reliability - modular system - the wire is stiff, but still gives in. In addition, the installation is done once. Not critical Shashic: use be quiet! BN343 few months |
3 out of 7 user review(s) shown
4 more user review(s)
be quiet! Pure Power 12 M configurations
| Price for be quiet! Pure Power 12 M | ||||
|---|---|---|---|---|
 | be quiet! Pure Power 12 M BN341 | from £99.95 | 3 offers | |
 | be quiet! Pure Power 12 M BN342 | from £84.98 | 2 offers | |
| be quiet! Pure Power 12 M BN343 | from £108.81 | 1 offer | |
 | be quiet! Pure Power 12 M BN346 | from £148.32 | 8 offers | |
Supports ATX 3.0 and PCI-E 5.0
be quiet! Pure Power 12 M is a modern power supply that combines excellent performance, energy efficiency and functionality, making it an ideal choice for a variety of users. The model is 80 Plus Gold certified with an efficiency of up to 93%. Pure Power 12 M also supports the PCI-E 5.0 standard and includes a 12VHPWR connector, which allows you to connect GeForce RTX 4000 graphics cards with a power consumption of up to 600 W without the need for adapters.
10 years warranty
To develop the power supply, the company chose an affordable but high-quality HEC platform with LLC topology, half-bridge converter and DC-DC converters for secondary lines. According to the manufacturer, it provides stable voltage with minimal deviations (less than 2%) and a significant power reserve (+25% of the nominal). The device uses solid Teapo capacitors and high-quality German transistors. Despite the absence of Japanese capacitors, which are often found in 80+ Gold class PSUs, a 10-year warranty and a wide range of protective functions confirm the high reliability of the power supply, which can easily withstand several system upgrades.
Quiet fan and modular cables
All power cables in the model are modular, which allows you to disconnect unnecessary cables when assembling the system, simplifying the process and maintaining order in the case. The Pure Wings 2 fan with a diameter of 120 mm with PWM control automatically adjusts the operating speed to ensure an optimal level of acoustic comfort. Even at maximum load, the noise level does not exceed 26 dB, which makes be quiet! Pure Power 12 M an excellent choice for those who value silence.
We recommendCompare using chart →
750 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 2, ATX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 7 years
750 W, 24+8+8(4+4) pin, 2 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 3, ATX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 7 years
750 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 3, ATX, modular, Efficiency 92 %, certificate 80+ Gold, warranty 8 years
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, certificate 80+ Gold
750 W, 24+8+8(4+4) pin, 2 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, SFX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 5 years
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 6, Molex 2, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
850 W, 24+8+8(4+4) pin, 4 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 5 years
750 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 10 years
750 W, 24+8+8(4+4) pin, 3 x 6+2 pin, 1 x 16 pin, SATA 5, Molex 4, ATX, modular, Efficiency 92 %, semi-passive СО, certificate 80+ Gold, warranty 10 years