be quiet! Pure Power 12 M 850W 80 Plus Gold Modular Power Supply | | ATX 3.1 Compliant | PCIe 5.0 GPUs and GPUs with 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan | BN505
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Availability:
In Stock.
Arrives
Tuesday, Jul 29
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Style: Modular 850W
Features
- ATX 3.1 PSU with full support for PCIe 5.0 GPUs and GPUs with 6+2 pin connectors
- 80 PLUS Gold efficiency (up to 93.2%)
- ATX 3.1 PSU with full support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors
- Exceptionally silent 120mm be quiet! fan
- Advanced stability and voltage regulation thanks to LLC technology
- 2 strong 12V-rails
- Modular cables for maximum build flexibility
- One PCIe 5.1 12VHPWR 600W and 4 PCIe 6+2 connectors for overclocked high-end GPUs
- 10-year manufacturers warranty
- German Design I German Engineering I German Quality I German Performance
Description
Pure Power 12 M 850W is ATX 3.0 compliant and PCIe 5.0 compatible and offers peerless dependability with best-in-class features. Pure Power 12 M 850W offers the best combination of features with outstanding compatibility.
Model Name: BN505
Brand: be quiet!
Compatible Devices: Most ATX 3.1 Devices
Connector Type: ATX
Output Wattage: 850
Form Factor: ATX
Wattage: 850 watts
Cooling Method: Air
Item dimensions L x W x H: 5.91 x 3.39 x 6.3 inches
Power Supply Design: Semi-Modular
Brand: be quiet!
Series: BN505
Item model number: BN505
Item Weight: 6.96 pounds
Product Dimensions: 5.91 x 3.39 x 6.3 inches
Item Dimensions LxWxH: 5.91 x 3.39 x 6.3 inches
Manufacturer: be quiet!
Date First Available: February 16, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jul 29
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Modular 750W
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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Reviewed in the United States on May 22, 2024 by Chris C
Style: Modular 1000W
The Pure Power 12 M 1000W power supply unit (PSU) is a true testament to be quiet!'s commitment to delivering top-tier performance, reliability, and efficiency. As an avid PC enthusiast who demands nothing but the best for my system, I can confidently say that this PSU exceeded all my expectations. First and foremost, let's talk about power efficiency. With its 80 Plus® Gold certification, the Pure Power 12 M ensures exceptional energy efficiency, allowing my system to operate at peak performance while consuming minimal power. This not only reduces electricity costs but also minimizes heat output, contributing to a cooler and quieter computing experience. In terms of power delivery, the Pure Power 12 M 1000W PSU offers ample wattage to handle even the most demanding components with ease. Whether I'm running multiple graphics cards, high-end processors, or a plethora of peripherals, this PSU delivers a stable and reliable power output, ensuring smooth and uninterrupted operation under any workload. Furthermore, the Pure Power 12 M boasts an ATX 3.0 form factor, providing broad compatibility with a wide range of PC cases and motherboards. Its modular design allows for easy cable management, minimizing clutter and optimizing airflow within the chassis for improved cooling performance. One aspect that truly sets the Pure Power 12 M apart is its whisper-quiet operation. Equipped with a SilentWings 3 fan, this PSU operates virtually silent even under heavy loads, ensuring a peaceful computing environment without any distracting noise. Last but not least, be quiet!'s reputation for quality and reliability shines through in every aspect of the Pure Power 12 M. Built with premium components and backed by a five-year warranty, I have complete peace of mind knowing that my system is powered by a PSU that's built to last. In conclusion, if you're in the market for a high-performance, energy-efficient, and whisper-quiet power supply unit, look no further than the Pure Power 12 M 1000W from be quiet!. With its 80 Plus® Gold certification, modular design, and rock-solid reliability, it's the perfect choice for discerning PC enthusiasts who demand nothing but the best.
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Reviewed in the United States on May 10, 2024 by Alex
Style: Modular 750W
The be quiet! Pure Power 12 M 750W power supply has been a fantastic addition to my setup. It’s so quiet that I often forget it's even on – the noise level is almost non-existent, which is perfect for anyone who values a silent PC. It provides plenty of power for my PCIe 5.0 GPU, and the modular cables help keep my system clean and organized. The 80 Plus® Gold efficiency rating ensures great performance, and the warranty and brand reputation give me peace of mind knowing I'm investing in a reliable product. If you're looking for a quiet, efficient, and durable power supply, this is definitely a top choice!
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Reviewed in the United States on February 12, 2025 by Peter K
Style: Modular 1000W
Be Quiet is a brand that I have grown to trust over the years. I have CPU cooler from them and was pleasantly surprised to see how low of a price this PSU is. Being PCI 5.0 ready with a modular cable specific for those cards (I bought this PSU to juice up my new 5080) so this is ready to go for those cards. Like the brand name this PSU is silent or at least I cannot hear it over any of my other fans in the case, no coil wind either. The ONLY thing I would keep in mind is these cables are relatively short compared to my last ancient PSU, Corsair RM750. My case has the PSU on the top so the pci 5.0 cable was just long enough to make to my graphics card. So keep in mind if you have a large case and need to make long runs with these cables. One solution is cable extensions seem to run just fine with this PSU. I have some inexpensive individually sleeved extensions for all cables except for the new GPU cable and have seen zero issues. Overall this a great choice and would strongly recommend this and would purchase for any of my builds in the future.
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Reviewed in the United States on February 3, 2025 by Tyler M.