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be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for PCIe 5.1 GPUs, semi-Passive 120mm be quiet! Fan, LLC Technology, Single Rail, for Overclocked GPUs
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AI Verdict
This 1000W ATX 3.1 PSU with PCIe 5.1 support and semi-passive cooling is for quiet, high-power gaming or workstation builds.
This PSU is a strong fit for high-performance systems, especially those with power-hungry GPUs, thanks to its 1000W output and ATX 3.1/PCIe 5.1 compatibility. Its semi-passive cooling ensures quiet operation, which is a key selling point for be quiet! products. The modular cabling also helps with clean builds.
If you're building a system with multiple high-end GPUs or extreme overclocking, look for PSUs with higher wattage (1200W+) and potentially Titanium efficiency for maximum headroom and energy savings.
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Pros
- Achieves up to 94.4% efficiency, exceeding its 80 Plus Gold certification in some tests.
- Features a semi-passive 120mm fan that remains silent, operating at 8.2dba at 20% load.
- Includes a native 12V-2x6 connector for PCIe 5.1 GPUs and four additional PCIe 6+2-pin connectors.
- Provides 1000W of continuous power on a single 12V rail, handling power excursions up to double its rated power.
- Comes with fully modular cables for streamlined cable management and improved airflow.
- Backed by a 10-year warranty, indicating manufacturer confidence in its durability.
Cons
- Some users have reported the included cables, particularly PCIe, might be shorter than desired for larger cases.
- While advertised as 80 Plus Gold, its actual performance often reaches Platinum levels, which could be clearer in marketing.
- The 160mm length might be a tight fit in some smaller ATX cases, requiring careful measurement.
Dimension Scores
The PSU is 80 Plus Gold certified with up to 94.4% efficiency, and some tests show it reaching Platinum levels, providing excellent power conversion.
Its semi-passive 120mm fan allows for silent operation under low loads, with noise levels as low as 8.2dba at 20% load.
Professional reviews praise its 'excellent' build quality and the use of 105-degree Celsius rated capacitors from Chinsan Electronic.
The fully modular design allows for clean cable routing and improved airflow, though some users noted cable lengths might be short for specific builds.
Best For
- PC builders needing 1000W for high-end gaming rigs with current or next-gen GPUs.
- Users prioritizing a quiet system, especially during low-load tasks due to semi-passive fan operation.
- Workstation users requiring stable power delivery for demanding applications and rendering.
Not Recommended For
- Budget-focused builds that don't require 1000W or ATX 3.1 compliance.
- Compact ITX or SFF cases where the 160mm length might pose installation challenges.
Watch Out For
- Cable length concerns: One user noted the included PCIe cables were 'very short', potentially complicating routing in larger cases.
- While it has a native 12V-2x6 connector and four 6+2 pin PCIe connectors, some users might misinterpret the number of *cables* versus *connectors*.
Full Specifications
| ASIN | B0FBXX1D17 |
| Brand | be quiet! |
| Wattage | 1000 watts |
| Model Name | BP028US |
| Form Factor | ATX |
| Item Weight | 6.9 pounds |
| Manufacturer | be quiet! |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 1000 Watts |
| Item model number | BP028US |
| Compatible Devices | PC |
| Product Dimensions | 6.3 x 5.91 x 3.39 inches |
| Power Supply Design | Full Modular |
| Item dimensions L x W x H | 6.3 x 5.91 x 3.39 inches |
What Buyers Say
What really stands out is how quiet this thing runs; the fan literally stops when your PC isn't working hard, which is a huge win for anyone tired of PC hum. The native PCIe 5.1 connector is a big deal for future-proofing, so you're not stuck with adapters for your next GPU. While it's rated Gold, it often performs like a Platinum unit, giving you more efficiency than you paid for. The modular cables are a blessing for keeping your case tidy, but you might want to double-check their length if you have a massive case.
“Dude, this PSU is seriously quiet, like, I forgot my PC was even on sometimes until I started gaming hard. The new GPU cable is clutch too, no more ugly adapters! Only thing is, some of the cables felt a little short for my big ass case, but I made it work.”
Common Praise
- Fan stops completely under low system loads, making the PC nearly inaudible.
- Includes the 12V-2x6 connector, directly supporting new PCIe 5.1 graphics cards without extra dongles.
- Power delivery is stable, even when GPUs demand sudden, high power spikes.
- Achieves higher efficiency than its 80 Plus Gold rating suggests, often performing at Platinum levels.
- Fully modular cables make building and maintaining a clean PC interior much easier.
Common Complaints
- Some users found the included cables to be on the shorter side, which can be an issue in larger cases.
- The 160mm length, while standard ATX, can still be a tight squeeze in some compact cases.
Ownership Tips
- The semi-passive fan feature actually works as advertised, leading to a much quieter desktop experience during everyday tasks.
- The native 12V-2x6 cable is a game-changer for new GPU installations, making the build cleaner and less prone to connection issues.
- The 10-year warranty provides significant peace of mind, suggesting this PSU is built to last through multiple system upgrades.
- Cable stiffness can vary, impacting how easily they can be routed and bent in tight spaces.
Frequently Asked Questions
Does this PSU support the new NVIDIA RTX 40-series graphics cards?
Yes, it supports next-generation PCIe 5.1 graphics cards with its native 12V-2x6 connector, which is what the RTX 40-series uses.
Is this power supply truly quiet?
Yes, it features a semi-passive 120mm fan that turns off under low loads. Even at 50% load (500W), it operates at a very low 8.6dba, making it exceptionally quiet.
Are the cables modular?
Yes, all cables are fully modular, which means you only connect the cables you need, simplifying cable management and improving airflow inside your PC case.
What is the efficiency rating?
It is 80 Plus Gold certified with an efficiency of up to 94.4%. Some independent tests have even shown it performing at Platinum efficiency levels.
What is the warranty period for this PSU?
The be quiet! Pure Power 13 M 1000W comes with a 10-year warranty, providing long-term peace of mind.
Buying Guide
When you're looking at power supplies, you're basically buying the heart of your PC. You need enough wattage to power all your components, especially your graphics card. Efficiency ratings like 80 Plus Gold tell you how much power is actually delivered to your components versus wasted as heat, which impacts your electricity bill and how hot your system runs. Newer standards like ATX 3.1 and PCIe 5.1 are crucial if you're getting a modern, high-end graphics card, as they come with specific power connectors.
Wattage (1000W)
This is the total power your PSU can deliver. Think of it like the horsepower of a car; more horsepower means it can handle heavier loads. 1000W is a lot, suitable for systems with powerful CPUs and high-end graphics cards, ensuring everything runs smoothly without power shortages.
80 Plus Gold Certification (up to 94.4% efficiency)
This rating indicates how efficiently the PSU converts AC power from your wall outlet into DC power for your PC. Gold means it's very efficient, wasting less energy as heat and saving you a bit on your electricity bill compared to lower-rated PSUs. Up to 94.4% is really good, almost Platinum level.
ATX 3.1 & PCIe 5.1 Support with 12V-2x6 connector
This is about future-proofing. ATX 3.1 is the latest standard for power supplies, and PCIe 5.1 is for the newest graphics cards. The 12V-2x6 connector is a new, single cable designed to deliver a lot of power to these modern GPUs, replacing multiple older 6+2 pin cables and making your build cleaner and more reliable.
Alternatives
If you don't need 1000W, look for ATX 3.1 PSUs in 750W or 850W with 80 Plus Gold or Platinum efficiency. If your case is very small, search for shorter PSUs, typically under 150mm in length.



