It's been 12 years since I built myself a new machine, so I felt like I deserved to do it right. After all kinds of research and shopping, I decided on this P/S. (Pure Power 12 M 750W, ATX 3.0, 80 Plus Gold.) I wanted gold, I wanted modular, and I wanted a hundred or two extra watts. I had some trouble figuring out which power connectors went where on the motherboard. (Two 8 pin plugs on the motherboard and one 8 pin connector on the video card.) I called their tech support, it got answered almost immediately by a nice lady who, to my surprise, knew exactly what was going on once I told her which power supply I had! That's not as easy as it sounds, since, all the different Pure Power supplies come with different sets of (modular) cables; she had a lot to remember! We figured it out in no time and she kept me from potentially plugging one of the motherboard 8 pin connectors into the video card and vice versa. ASRock and Pure Power had totally different names for them. One of the most pleasant tech support calls I've ever been on!
So, this power supply has been working in this machine for over a month. I've had the machine stressed on purpose, testing with CPU Z and and stressed incidentally, up-scaling (from 480P to 720P) and converting (from MP4 to MKV H265) video files. This was a real pleasure! Files that took my old machine over an hour, took 4-6 minutes on this one! Never any trouble, let alone with the power supply. I tried to find the "knee" in the performance to price ratio curve for all these parts, and if I did it anywhere, I did it with this power supply! The computer has 48 gigabytes (2X24) of G.Skill Ripjaws memory. This machine also has 5 M2 SSD's (One is PCI 5), a SATA 3 SSD, and two 6 terabyte (left over from NAS's) SATA 3 Seagate Iron Wolf HDD's. For video, it's got a used Zotac 1660 6GB GDDR5 card. I'm not a gamer; more of a productivity guy, but this machine's pretty decked out and it's faaast, and there's never any kind of a problem with this power supply! Oh! Yea! No LED's. The motherboard has them and has an LED controller, but I turned them off. The fans' LED's aren't plugged in. But it has two PWM fans for the processor cooler and 6 PWM case fans - the smallest is 120 mm.
It boots in under 15 seconds, with all kinds of stuff running, and the cooling fans also crank up as it's booting, as it shuts down, for a second, and once in awhile for no apparent reason. All the other fans are louder (only when it's stressed) than the power supply fan, which I never even hear.
I recommend it completely. It's well-built, competent, reliable, (so far; you never know for sure), and quiet, and it has great tech support if you need it. It's beefy and heavy, but not monstrously huge. It's very well priced for a "serious" power supply. Perfect! It's in a Phanteks Enthoo case with plenty of room, so the [modular] wiring is all well laid out inside. I found the included wiring harnesses long enough and sufficient for this build. This power supply finished off a very nice machine! I can't imagine needing a bigger power supply than this unless you've got a gamer-style, several thousand dollar video card or something.
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From the manufacturer
Header_Pure Power 12 M
Exceptional Quiet, Superior Features
Future Proof Your System
80 Plus Gold Certified
Pure Power 12 M 750W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 92.6%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 M 750W is always the correct choice for quiet systems and gaming PCs!
Future Proof Your System
Pure Power 12 M 750W is an ATX 3.0 PSU and comes with both native integration of the 12VHPWR connector for next-generation PCIe 5.0 graphics cards, and PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful present systems.
The New Standard of Power
Pure Power 12 M offers 750W of continuous power with 2 independent 12V rails. Even if the graphics card demands excessive power for a short time: Pure Power 12 M 750W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics card.
High-Class Technologies
Unprecedented Silent Operation
The exceptionally silent 120mm be quiet! fan is temperature-controlled to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling quiet functionality.
High-Class Technologies
With its LLC topology Pure Power 12 M 750W provides voltage regulation and efficiency. That makes it perfect for building or upgrading very quiet systems as well as gaming and media creation PCs.
Modular Cables
Thanks to their modularity, all unnecessary cables in the system are left out. Pure Power 12 M 750W simplifies cable management and routing for a tidy-looking system. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures inside the case
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Customers say
Customers find the power supply super quiet and reliable, with one mentioning it boots in under 15 seconds. Moreover, the unit is well-built, easy to hook up, and comes with all necessary cables, though some note the cables might be a bit short. Additionally, they appreciate its efficiency, with one customer noting it provides plenty of power for their PCIe 5.0 GPU. However, the fit receives mixed feedback, with some saying it fits well in ATX cases while others report issues.
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31 customers mention noise level, 26 positive, 5 negative
...-built, competent, reliable, (so far; you never know for sure), and quiet, and it has great tech support if you need it....Read more
Very quiet and provided all the power needed for my systemRead more
This power supply is super quiet!...Read more
Installed in HP z240 workstation with adapter, works great and totally quiet.Read more
30 customers mention reliability, 22 positive, 8 negative
Installed in HP z240 workstation with adapter, works great and totally quiet.Read more
...I recommend it completely. It's well-built, competent, reliable, (so far; you never know for sure), and quiet, and it has great tech support if you...Read more
Intermittent cold-boot/display initialization issues. System powers on but fails to initialize display after being fully powered off (Cold boot)....Read more
An excellent and reliable power supply. Tier ARead more
24 customers mention quality, 21 positive, 3 negative
12 customers mention build quality, 12 positive, 0 negative
...I’d give it a try and it’s been great so far so problems and well built feels good quality.Read more
...I recommend it completely. It's well-built, competent, reliable, (so far; you never know for sure), and quiet, and it has great tech support if you...Read more
...I'm SUPER impressed with the build quality, low noise, and so far reliability. It's my new go-to power supply brand.Read more
The built quality is what's expected from beQuiet. Very easy to hook up. This PSU is Tier A on the PSU Cult list. I highly recommend.Read more
9 customers mention installation, 8 positive, 1 negative
Very nice equipment and easy to install. Works well.Read more
...Straight forward connections, fits well in an ATX case, I have had no issues at all with this power supply.Read more
...First time buying from Be Quiet! and I'm really impressed. Installation was a breeze and cables are very easy to manage....Read more
This power supply is fully modular, so running cables in your case is very easy. The cables are also all black and very high quality....Read more
7 customers mention power efficiency, 7 positive, 0 negative
...It's actually rated higher than advertised for efficiency. Cybenetics certifies the 13M 750W as Platinum efficiency and A++ for noise profile....Read more
...It’s modular, ATX 3.0, PCIE 5 (12vhpwr), and comes with all the cables you could need. The fan is super quiet (like all be quiet fans are).Read more
...It provides plenty of power for my PCIe 5.0 GPU, and the modular cables help keep my system clean and organized....Read more
...The included connectors are good and it's powering my mother board and GPU just fine.Read more
17 customers mention cable length, 9 positive, 8 negative
...It’s modular, ATX 3.0, PCIE 5 (12vhpwr), and comes with all the cables you could need. The fan is super quiet (like all be quiet fans are).Read more
...As someone else mentioned, They cables aren't labelled, But to most that wouldn't really be a concern as it's all pretty straightforward when it...Read more
...Comes with plenty of cords and instructions as well as new high voltage cordRead more
...My only complaint is that the motherboard cable was really short so there was barely any slack i could use.Read more
6 customers mention fit, 4 positive, 2 negative
...might be a bit short if you have an XL case, but it fits perfectly in the Fractal North. Highly recommended.Read more
The PSU might be great, but I was unable to use it because it would not fit in my case....Read more
This PSU fit perfectly in my Fractal Design North Case. It is very quiet and seems to be stable....Read more
...Straight forward connections, fits well in an ATX case, I have had no issues at all with this power supply.Read more
Top reviews from the United States
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- Reviewed in the United States on November 9, 2025Size: 750WStyle: 13 M (2025)Verified Purchase
This PSU just "feels" like a quality unit. Designed in Germany, manufactured in Taiwan. It's actually rated higher than advertised for efficiency. Cybenetics certifies the 13M 750W as Platinum efficiency and A++ for noise profile. When combined with my Noctua cooler, undervolted 9800X3D, and custom case fan profiles, my tower makes almost ZERO noise. The zero-RPM fan is great, and even when it does spin under load it's quieter than the other fans. I expect to be able to use this power supply for the entire 10 year duration that it's under warranty, and it will likely be used in 2 or 3 more builds in the future.Excellent power supply. No compromises and very quiet!
Reviewed in the United States on November 9, 2025
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Top reviews from other countries
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Rafael sanchez sotoReviewed in Mexico on January 12, 2026
me encanto, muy recomendada
Size: 750WStyle: 13 M (2025)Verified Purchase -
juan j.Reviewed in Mexico on April 3, 2025
Buena fuente mala atención.
Size: 750WStyle: 12 MVerified Purchase
La caja estaba en mal estado y no me trajo los cables, además tenía un golpe la fuente.juan j.Buena fuente mala atención.
Reviewed in Mexico on April 3, 2025
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- Ryan HannaReviewed in the United Arab Emirates on May 30, 2025
FNPB face no problems battery
Size: 750WStyle: 12 MVerified Purchase - Amazon CustomerReviewed in Canada on January 28, 2026
Power supply modular
Size: 750WStyle: 12 MVerified Purchase
