be quiet! BN517 Straight Power 12-1200W

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87%
94%
Quiet Operation Under Load
91%
Build Quality and Durability
89%
Energy Efficiency
88%
Modular Cable System Flexibility
87%
Cooling Performance
92%
Compatibility with High-End GPUs
82%
Setup and Installation
90%
Value for Money
75%
Size and Space Considerations
85%
Warranty and Customer Support
83%
Long-Term Reliability
92%
Power Delivery Stability
More

Overview

The be quiet! BN517 Straight Power 12-1200W is a high-performance, modular power supply designed to handle the demands of modern, power-hungry PCs. With a 1200W capacity and an 80 Plus Platinum efficiency rating, it ensures maximum energy savings while delivering reliable power. This power supply is fully compatible with ATX 3.0 and PCIe 5.0 graphics cards, making it ideal for enthusiasts and professionals looking to build high-end systems. Users will appreciate the combination of performance and silent operation, thanks to its advanced cooling system and be quiet! fan.

Features & Benefits

This power supply offers up to 93.8% efficiency, which translates into lower energy consumption and reduced heat output. The full modular cable system is perfect for creating a cleaner build by reducing cable clutter, while also allowing for easy upgrades or modifications. It features a 135mm be quiet! fan for near-silent operation, ensuring a quiet computing experience even under heavy load. The funnel-shaped intake provides enhanced airflow, promoting better cooling performance, making this PSU an excellent choice for users who value both performance and quietness.

Best For

The BN517 Straight Power 12-1200W is best suited for serious gamers, content creators, and professionals with high-performance PC builds. If you're planning to use PCIe 5.0 GPUs or other power-hungry components, this PSU provides the stable and efficient power delivery you need. It’s also ideal for those looking to reduce noise without compromising on performance, as the quiet operation is one of its standout features. This power supply is a great choice for anyone seeking a reliable and energy-efficient solution for demanding applications and gaming setups.

User Feedback

The be quiet! BN517 Straight Power 12-1200W has garnered positive feedback for its quiet operation, even under heavy load, which is a major selling point for users sensitive to noise. Customers appreciate its stable power delivery and high-quality build, noting that it works well with high-end GPUs. However, some users have mentioned that it’s a bit large for smaller cases, so space constraints might be a consideration when planning your build. Overall, this PSU is well-regarded for those building powerful, silent systems.

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Pros

  • The 80 Plus Platinum certification ensures high energy efficiency, saving users money on electricity bills.
  • The full modular cables offer excellent flexibility and a cleaner, more customizable build.
  • Users appreciate the quiet operation even under full load, making it ideal for noise-sensitive environments.
  • Its 1200W power output provides ample headroom for high-end, power-hungry PC builds, including those with PCIe 5.0 graphics cards.
  • The funnel-shaped intake helps optimize airflow, improving cooling efficiency and maintaining stable performance.
  • With its high build quality and durable components, this PSU is praised for its long-lasting performance.

Cons

  • The large size and weight may not be suitable for smaller cases or compact builds.
  • Some users report that cable management can be challenging, especially in tight spaces despite the modular design.
  • While it’s highly efficient, its premium price may not be justifiable for users with less demanding setups.
  • The PSU's 1200W capacity is overkill for entry-level systems or builds with less power demand.
  • A few users mention that the fan noise increases when the system is under load, which may be noticeable in ultra-quiet builds.
  • Despite the clean build, the unit’s heavy weight and size can be a drawback for those seeking a lightweight solution.

Ratings

After analyzing a diverse set of verified user reviews from multiple countries and platforms, the feedback for the be quiet! BN517 Straight Power 12-1200W is largely positive. Spam, bot, and incentivized reviews were filtered out, and only authentic, high-quality insights informed the scores. Both strengths and pain points are reflected in the ratings, showcasing real-world user experiences and expectations across various use cases and system setups.

Quiet Operation Under Load
94%
Users consistently praise the near-silent operation of this power supply, even when fully loaded. The be quiet! Silent Wings fan technology ensures that it remains exceptionally quiet, which is particularly important for those working in noise-sensitive environments or using high-performance systems for gaming and content creation.
Some users have reported that the fan, while quiet, can occasionally be a bit louder during intense power draws, especially in warmer environments. While most find the noise level acceptable, those with very small cases or minimal airflow setups might notice it more.
Build Quality and Durability
91%
Buyers frequently highlight the solid construction and reliable feel of this power supply. The premium build quality assures long-lasting durability, making it a great choice for demanding users who need a power unit that can handle high-performance setups over time without compromise.
A few reviewers mentioned that the PSU is slightly heavier than similar units, which could be an issue in compact builds or systems with limited space. Additionally, a small number of users noted that the cables, although modular, could be more flexible.
Energy Efficiency
89%
This unit stands out for its impressive 93.8% efficiency, which means less power wasted and lower electricity bills. It's perfect for users who care about both performance and energy savings. Many users appreciate the long-term value it offers by operating at such a high efficiency, especially in constant, heavy-use scenarios.
While most find the efficiency impressive, a few reviewers observed that the unit can get somewhat warm under maximum load, though this is common with high-wattage power supplies. However, some users expected slightly better performance in extreme conditions.
Modular Cable System Flexibility
88%
The full modular cable system is a major plus for users looking for a cleaner, more organized build. It allows for customizable configurations, reducing cable clutter and improving airflow inside the case. This flexibility is appreciated by those who want to maximize both aesthetics and cooling efficiency in their high-end systems.
A few users noted that the cables could be a bit stiff at first, making them harder to route in tight spaces. Additionally, while the modular setup is excellent for flexibility, it can be confusing for first-time builders who are not familiar with managing cable connections.
Cooling Performance
87%
The cooling performance of this PSU is excellent, thanks to the funnel-shaped intake and the Silent Wings fan. It provides efficient airflow that helps maintain stable performance even during intensive gaming or rendering sessions. Users report that this feature contributes to a quieter and cooler system overall.
However, some users felt that the cooling system could struggle in smaller cases with limited airflow. In those situations, the PSU may run hotter than expected, affecting overall performance and longevity, especially in cramped or suboptimal setups.
Compatibility with High-End GPUs
92%
One of the key strengths of this PSU is its full compatibility with PCIe 5.0 GPUs. Many users building or upgrading to high-end gaming PCs or workstations find this particularly useful, as it ensures stable and efficient power delivery to power-hungry components like the latest graphics cards.
A few users have mentioned that the PSU's size may limit compatibility with certain small form-factor cases, especially when using large PCIe 5.0 graphics cards. It's important to ensure proper clearance when integrating this PSU into compact builds.
Setup and Installation
82%
18%
Most users find the setup and installation process relatively straightforward, thanks to the full modular system and clear cable labeling. The simple connections and high-quality cables make it easy for even novice builders to install with confidence.
Some users mentioned that the power supply's size can make it a bit tricky to install in cramped cases. Additionally, while most installations go smoothly, a few reported challenges with cable management in tight spaces due to the thickness of the cables.
Value for Money
90%
Given the 80 Plus Platinum certification, high-end components, and durability, users consider this PSU a solid investment for serious gaming or content creation setups. The combination of efficiency, quality, and power delivery provides excellent value for those seeking long-term performance without cutting corners.
While many agree the unit offers strong value, some feel the higher price tag is a barrier, especially when compared to other units in the same wattage range. For users on a budget, the upfront cost could be considered a downside.
Size and Space Considerations
75%
25%
The larger size of this PSU helps accommodate the high-wattage and cooling features, which users who are building high-end systems can appreciate. The compact and sturdy design fits well in many mid and full tower cases.
However, the PSU's larger form factor may not be ideal for smaller cases. Users with compact or mini-ITX builds reported that the unit's size could lead to space constraints, making it difficult to integrate into tight setups.
Warranty and Customer Support
85%
The 5-year warranty gives users peace of mind, and the solid reputation of the brand's customer service ensures that any issues are handled professionally. Many buyers appreciate knowing they can rely on strong after-sales support if needed.
Though the warranty period is great, a few users have noted that the response times for customer support could be slower than expected, particularly when dealing with less common issues or during peak periods. Some buyers experienced delays in receiving timely responses.
Long-Term Reliability
83%
Many long-term users report that the power supply holds up well under heavy load, maintaining stable performance over the years. The reliable power delivery and consistent cooling are key reasons why this PSU is favored by users looking for something that will last.
Some users expressed concerns about potential degradation over time, particularly in extreme use cases with sustained high loads. A few noted that, while the unit performs well initially, long-term wear could affect its ability to operate optimally under constant stress.
Power Delivery Stability
92%
This power supply is well-regarded for providing stable and consistent power, even when pushing demanding systems to their limits. The high-quality components ensure that it delivers clean, reliable power to all components, minimizing the risk of power-related issues during intense workloads or gaming sessions.
However, a few users did experience issues with power delivery when using it in suboptimal systems or cases with poor airflow. While this is more likely to happen in lower-quality setups, it's worth noting that not all users reported flawless performance in every environment.

Suitable for:

The be quiet! BN517 Straight Power 12-1200W is an excellent choice for gamers, content creators, and professionals working with high-power PC setups. Users building PCs with the latest PCIe 5.0 graphics cards will benefit from its robust power delivery and compatibility, ensuring stable and efficient operation even under heavy load. The unit's 80 Plus Platinum efficiency makes it a great option for those who value energy savings over the long term, especially in power-hungry builds. Additionally, its quiet performance under load is ideal for those who need a near-silent system in noise-sensitive environments, such as studios or home offices.

Not suitable for:

This power supply may not be the best fit for users with compact PC cases or those building budget-friendly systems. Its larger size and weight can be a limiting factor for small form-factor builds or users seeking a lightweight PSU. While the modular cable system offers excellent flexibility, some beginners may find the cable management more challenging in tight spaces. Additionally, the higher price point may not justify the performance benefits for users with less demanding setups or those on a stricter budget, as there are more affordable options available that offer sufficient power for mid-range systems.

Specifications

  • Power: The power supply delivers 1200W to support high-performance gaming and content creation setups.
  • Efficiency: It features 80 Plus Platinum certification, achieving up to 93.8% efficiency for energy savings.
  • Cooling: Equipped with a 135mm be quiet! Silent Wings fan, designed for quiet and efficient operation.
  • Form Factor: The power supply is designed in the ATX form factor, making it compatible with standard PC cases.
  • Modular Cables: It includes full modular cables, allowing for a cleaner and more customizable build.
  • Airflow: A funnel-shaped intake is integrated into the design to optimize airflow and cooling performance.
  • Compatibility: Supports PCIe 5.0 graphics cards for the latest high-end GPU compatibility.
  • Dimensions: The power supply measures 7.09 x 5.91 x 3.39 inches, fitting most full-sized ATX cases.
  • Weight: Weighing 4.07 kg, the power supply is relatively heavy, reflecting its robust build quality.
  • Warranty: It comes with a 5-year warranty, offering long-term reliability and peace of mind.
  • Voltage: The unit supports an input voltage range of 100-240V AC, making it suitable for global use.
  • Connectors: Includes 6+2 pin connectors for PCIe GPUs, ensuring compatibility with modern graphics cards.
  • Fan Technology: The power supply features Silent Wings fan technology for optimized cooling with reduced noise.
  • Build Quality: Users report stable power delivery and solid build quality, ensuring reliable operation over time.
  • Efficiency Under Load: It operates efficiently even under full load, maintaining stability while minimizing heat generation.
  • Cable Length: Cables are of adequate length for typical PC cases, ensuring easy installation and cable management.
  • Airflow Optimization: The funnel-shaped intake not only aids cooling but also enhances airflow throughout the system.
  • Size Compatibility: While compatible with most ATX cases, users should verify available space due to the PSU’s size.

FAQ

The BN517 Straight Power 12-1200W is designed to support power-hungry components, providing 1200W of stable power. Its 80 Plus Platinum certification ensures high energy efficiency, and it supports the latest ATX 3.0 and PCIe 5.0 standards, making it ideal for gaming PCs and content creator setups with powerful GPUs and other demanding hardware.

Thanks to its Silent Wings 135mm fan technology, this power supply operates quietly even under heavy load. Users report that it maintains a quiet profile, making it an excellent choice for those looking to keep their PC silent during intensive tasks like gaming or rendering.

While the BN517 Straight Power 12-1200W is compatible with most ATX cases, its relatively large size (7.09 x 5.91 x 3.39 inches) might not fit in smaller form-factor cases. Ensure that your case supports ATX power supplies with the dimensions of this unit before purchasing.

The full modular cable system allows you to connect only the cables you need, helping to keep your build cleaner and more organized. It also provides greater flexibility in cable management and airflow, making your setup easier to maintain and improving cooling efficiency.

Yes, this power supply is fully compatible with PCIe 5.0 GPUs, making it an excellent choice for users looking to build a system with the latest high-performance graphics cards that demand more power.

The BN517 Straight Power 12-1200W comes with a 5-year warranty, ensuring peace of mind for users concerned about the longevity and reliability of their power supply. This warranty covers defects in materials and workmanship.

With its 80 Plus Platinum certification, the BN517 Straight Power 12-1200W achieves up to 93.8% energy efficiency. This means less energy is wasted as heat, contributing to both lower electricity bills and a cooler, more stable system.

While this power supply is designed for high-end systems with significant power requirements, it can technically be used in less demanding builds. However, the 1200W capacity may be overkill for systems that don't require that much power, making it less cost-effective for users with entry-level or mid-range setups.

Some users report that the size of the BN517 Straight Power 12-1200W can make installation tricky in smaller cases, especially when it comes to cable management. Despite its full modular cables, managing the excess cables in cramped spaces might require extra care.

The BN517 Straight Power 12-1200W is praised for its solid build quality and stable power delivery, which are key factors in its reliability. Users note that it performs well even under full load, contributing to the overall durability and long-term performance of a system.