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be quiet! Pure Power 12 M 750W Modular Power Supply | 80 Plus® Gold | ATX 3.1 | PCIe 5.0 GPUs and 6+2 pin connectors | 12VHPWR Cable Included | Silent 120mm be quiet! Fan - BN504 I 10 Year Warranty
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AI Verdict
This 750W 80 Plus Gold ATX 3.1 PSU with 12VHPWR and four 6+2 pin PCIe connectors is for quiet, future-proof PC builds.
This 750W unit is built for modern systems, offering ATX 3.1 and PCIe 5.1 compatibility with a 12VHPWR connector, making it ideal for current and future high-end GPUs. Its 80 Plus Gold efficiency and silent 120mm fan directly address the needs of users seeking quiet and efficient power delivery.
If you're running multiple high-power GPUs or plan to overclock extensively, consider a higher wattage unit like the 850W or 1000W models in the Pure Power 12 M series.
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Pros
- Achieves up to 93.0% efficiency, reducing energy waste and operating costs.
- Includes a 12V-2x6 600W connector and is ATX 3.1 and PCIe 5.1 compliant for next-gen GPUs.
- Maintains 750W continuous power with dual 12V rails and handles transient power spikes up to 2000W.
- Features a silence-optimized 120mm be quiet! fan with temperature-controlled speed adjustments for near-silent operation.
- Fully modular cabling simplifies installation and improves internal airflow.
- Backed by a 10-year manufacturer's warranty.
Cons
- Some users might find the physical number of PCIe cables limiting if they have multiple older GPUs requiring three separate 8-pin connectors.
- The 24-pin motherboard cable is sleeved differently from the flat peripheral cables, which might affect aesthetic consistency for some builders.
- No LED lighting on the fan or PSU body, which might disappoint users looking for RGB customization.
Dimension Scores
The 80 Plus Gold certification with up to 93.0% efficiency and 750W continuous power with 2000W transient spike handling is top-tier for its class.
The 120mm be quiet! fan is specifically designed for silent operation with temperature-controlled speed adjustments, consistently praised by users for its quietness.
Users report high reliability and robust build quality, backed by a 10-year warranty, indicating durable components and construction.
Its fully modular design allows for clean builds and improved airflow, with a comprehensive set of included cables for modern systems.
Best For
- Gaming PCs with current or next-gen PCIe 5.1 GPUs, like NVIDIA 40-series cards.
- Noise-conscious users building quiet systems.
- PC builders prioritizing efficient cable management and clean aesthetics due to fully modular design.
- Workstation setups demanding stable power delivery for demanding tasks and transient loads.
Not Recommended For
- Budget-focused builds where price is the primary concern over advanced features or quiet operation.
- Users with multiple older, high-power GPUs that require more than four 6+2 pin PCIe connectors on separate cables.
- Enthusiasts who require integrated RGB lighting in their power supply.
Watch Out For
- The included PCIe cables, while providing four 6+2 pin connectors, might be insufficient in terms of physical cable count for some older GPUs that specifically require three separate 8-pin power inputs.
- The 24-pin ATX cable has a different sleeving style compared to the other modular cables, which could be a minor aesthetic inconsistency for some builders.
Full Specifications
| ASIN | B0BVXYF78D |
| Brand | be quiet! |
| Wattage | 750 watts |
| Model Name | BN504 |
| Form Factor | ATX |
| Item Weight | 6.45 pounds |
| Manufacturer | be quiet! |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 750 |
| Item model number | BN504 |
| Compatible Devices | PC |
| Product Dimensions | 6.3 x 3.39 x 5.91 inches |
| Item dimensions L x W x H | 6.3 x 3.39 x 5.91 inches |
What Buyers Say
The most striking feedback is how consistently quiet this power supply runs, even under load, which is a huge win for anyone building a silent PC. Users frequently mention its robust build quality and the peace of mind that comes with the 10-year warranty. The fully modular cables are a recurring highlight, making builds much cleaner and easier. Its ATX 3.1 and PCIe 5.1 readiness, including the 12VHPWR connector, means it's well-prepared for current and future high-end GPUs.
“Man, this thing is seriously quiet, like, I can barely hear it even when my GPU is screaming. Cable management was a breeze too, finally a clean build!”
Common Praise
- The 120mm fan operates with extremely low noise, even during demanding tasks.
- The power supply feels very solid and well-constructed, indicating high build quality.
- Cable management is significantly easier due to the fully modular design.
- It includes the necessary 12VHPWR cable for NVIDIA 40-series GPUs.
- The 10-year warranty provides strong confidence in its longevity.
- Handles power excursions from graphics cards without issue.
Common Complaints
- The 24-pin motherboard cable has a different sleeving texture than other modular cables.
- Some users might desire more physical PCIe cables for specific multi-GPU or older GPU setups, despite the connector count.
- No integrated RGB lighting for aesthetic customization.
Ownership Tips
- The fan remains inaudible during typical desktop use and light gaming, only becoming faintly audible under sustained heavy loads.
- The modular cables are flexible enough to route easily, but the 24-pin cable is noticeably stiffer due to its different sleeving.
- The 12VHPWR cable feels secure and robust, instilling confidence with high-power GPUs.
- The unit runs cool to the touch, suggesting efficient heat dissipation even when pushing its wattage.
- Installation is straightforward, with clearly labeled ports for each cable type.
Frequently Asked Questions
Does this PSU support the latest NVIDIA 40-series graphics cards?
Yes, it includes a native 12VHPWR 600W connector and is ATX 3.1 and PCIe 5.1 compliant, making it ready for current and next-gen GPUs.
How quiet is the fan on this power supply?
It features a silence-optimized 120mm be quiet! fan with temperature-controlled speed adjustments and airflow-optimized blades, ensuring near-silent performance even under heavy loads.
Is this power supply fully modular?
Yes, the Pure Power 12 M 750W is fully modular, allowing for easy cable management and improved airflow within your PC case.
What kind of warranty does this PSU come with?
be quiet! offers a 10-year manufacturer's warranty for the Pure Power 12 M series, providing long-term peace of mind.
Can this PSU handle power spikes from demanding components?
Yes, it's designed to handle transient power spikes up to 2000W, ensuring stable operation even when components like graphics cards demand excessive power for short periods.
Buying Guide
When you're picking a power supply, you're essentially choosing the heart of your PC. It needs to deliver consistent, clean power to all your components without breaking a sweat or making a racket. You want enough wattage for your current and future parts, and good efficiency means less wasted energy and less heat inside your case. Cable management is also a huge deal for airflow and aesthetics, so modularity helps a ton.
Wattage (750W)
This is the total power your PSU can supply. Think of it like the engine size in a car; too small, and your PC won't run properly, especially under load. 750W is a sweet spot for many mid-to-high-end gaming PCs with a single powerful GPU.
80 Plus Gold Efficiency
This rating tells you how much power the PSU converts into usable electricity versus how much is lost as heat. Gold means it's very efficient (up to 93.0%), like a fuel-efficient car, saving you money on your electricity bill and keeping your PC cooler.
ATX 3.1 & PCIe 5.1 Support with 12VHPWR
This is about future-proofing. ATX 3.1 is the latest standard, and PCIe 5.1 with the 12VHPWR connector is specifically designed for the newest, power-hungry graphics cards. Without this, you might need adapters or a new PSU sooner than you think if you upgrade your GPU.
Fully Modular
This means you only plug in the cables you actually need. It's like having custom-length cables for your car engine – less clutter, better airflow, and a much cleaner look inside your PC. Non-modular PSUs have all cables permanently attached, creating a mess.
Alternatives
If you need more power for multiple high-end GPUs or extreme overclocking, look for PSUs with 850W or 1000W ratings. For tighter budgets, consider 80 Plus Bronze rated units, but expect slightly lower efficiency and potentially more noise.



