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TechGuided reported a 30% Amazon discount on the be quiet! BN515 Straight Power 12 850W on August 24, 2025. That is a historical deal, not confirmation of today’s price: check the live listing before budgeting for it. The PSU is fully modular, 80 PLUS Platinum certified and covered by a 10-year manufacturer warranty, according to the deal report.
Is it still 30% off on Amazon?
The reported discount appeared in a TechGuided deal article dated August 24, 2025. The report does not establish a current price, so treat 30% off as historical unless the Amazon listing now shows that reduction. Check the price displayed at checkout and confirm the seller, exact model number and warranty terms before buying.
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TechGuided’s August 24, 2025 deal report identifies the product as the BN515 Straight Power 12 850W. Its listed features include 850-watt output, 80 PLUS Platinum efficiency, full modularity and a 10-year manufacturer warranty.
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be quiet!’s current product page describes the Straight Power 12 850W family as an 80 PLUS Platinum PSU with efficiency of up to 94%. That is the manufacturer’s maximum stated efficiency, not a guaranteed efficiency at every load or a measure of how much a buyer will save on electricity.
#1 Best Overall
- GPU power: The manufacturer lists a native 12V-2×6 connector and four PCIe 6+2-pin connectors.
- Platform support: The current family page lists ATX 3.1 and PCIe 5.1 support.
- Noise and components: be quiet! specifies a Silent Wings 135mm fan and Japanese 105°C capacitors, and describes operation as virtually inaudible.
- Cable management: The unit is modular, so unused PSU cables can be left out of the build.
- Warranty: be quiet! lists a 10-year warranty for the product family.
See the be quiet! Straight Power 12 850W product page for the manufacturer’s current specifications.
Will 850W work with an RTX 5080?
The deal report says the 850W version can accommodate graphics cards up to an RTX 5080, and recommends at least 1,000W for an RTX 5090 build. Treat those as sizing guidance, not a guarantee for every PC: the CPU, GPU model, power limits, other components and planned upgrades all affect the system’s power needs. Check the graphics-card and CPU makers’ recommendations and assess the complete build before choosing a PSU.
Rank #2
- Straight Power 12 1500W is certified with 80 PLUS Platinum and an energy efficiency rating of up to 93.9%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation. The standby drain is below 0.1 watts.
- Straight Power 12 1500W 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 4 PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.
- Straight Power 12 offers 1500W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Straight Power 12 1500W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
- The high-end Silent Wings fan delivers best-of-class airflow yet produces very little noise. This is thanks to its unique, optimized fan blade design along with an advanced fluid-dynamic bearing and 6-pole fan motor that largely eliminates operational noise, has a super-long life and minimal power consumption.
- The funnel-shaped fan inlet of the Straight Power 12 1500W increases airflow while reducing unwanted turbulence for a higher cooling performance. The wire-free design inside allows the cool air to reach all components which ultimately leads to a longer lifespan.
Why should you verify the exact model and revision?
The deal report identifies the unit as BN515 and describes it as ATX 3.0/PCIe 5.0. The manufacturer’s current Straight Power 12 850W page displays article number BN337 and lists ATX 3.1/PCIe 5.1, including a native 12V-2×6 connector. Those are different identifiers and platform labels; the available information does not establish that the deal listing and current family-page product are the same revision.
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Quick Recap
Best Value
- PLATINUM CERTIFIED | Power Zone 2 850W is certified with 80 PLUS Platinum and Cybenetics Platinum, resulting in an energy efficiency rating of up to 94.1%. This results in lower power consumption, overall cooler and quieter operation, and many other benefits for your high-end system.
- SEMI-PASSIVE ZERO-RPM COOLING | A large Pure Wings 3 140mm fan is keeping Power Zone 2 850W cool. While under low load, the fan turns off completely until its services are needed again for more demanding operations. This post-ventilation requires a short cooldown period of 2-5 minutes to avoid frequent and annoying starts and stops of the fan. Combined with the large fan for active cooling, this power supply is exceptionally silent in all load scenarios.
- PURE WINGS 3 FAN | No Power Supply is like the other. Hence, we have altered aspects of our renowned Pure Wings 3 140mm fan to make it the perfect match for Power Zone 2 850W. The fan offers outstanding reliability and makes for a long-lasting companion. Due to its large diameter, the fan cools the interior of the PSU efficiently and quietly.
- FUTURE-PROOF YOUR SYSTEM | Power Zone 2 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 3 PCIe 6+2-pin connectors for support of current-gen GPUs. A 90° angled 12V-2x6 connector in the scope of delivery leaves no doubt that this PSU is here to stay. All of this makes Power Zone 2 850W extremely versatile and the perfect choice for powerful systems of today and the ones to come.
- THE NEW STANDARD OF POWER | Power Zone 2 offers 850W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Power Zone 2 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
Rank #4
- Pure Power 12 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 92.7% . The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 12 850W is always the correct choice for quiet systems and gaming PCs!
- Pure Power 12 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 3 PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come.
- Pure Power 12 offers 850W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Pure Power 12 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
- 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 best-in-class quiet functionality.
- With its LLC topology Pure Power 12 850W provides best-in-class voltage regulation and efficiency. That makes it perfect for building very quiet systems or upgrading gaming and media creation PCs.
Rank #3
- 80 PLUS GOLD CERTIFIED Pure Power 13 M 850W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 94.4%. The most compelling benefit: lower power consumption, consequently lower costs, and above all a cooler as well as quieter operation. Pure Power 13 M 850W is always the correct choice for quiet systems and gaming PCs!
- FUTURE-PROOF YOUR SYSTEM Pure Power 13 M 850W is an ATX 3.1 PSU and comes with both native integration of the 12V-2x6 connector for next-generation PCIe 5.1 graphics cards, and 4 PCIe 6+2-pin connectors for support of current-gen GPUs. This makes the PSU extremely versatile and the perfect choice for powerful systems of today and the ones to come
- THE NEW STANDARD OF POWER Pure Power 13 M offers 850W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Pure Power 13 M 850W handles power excursions up to double its rated power with ease. This ensures reliable operation with the next generation of processors and graphics cards.
- SEMI-PASSIVE ZERO-RPM COOLING While under low load, the fan turns off completely until its services are needed again for more demanding operations. This feature, combined with the reliable be quiet! fan and its airflow-optimized fan blades, make Pure Power 13 M 850W exceptionally silent in all load scenarios
- HIGH-CLASS TECHNOLOGIES With its LLC topology Pure Power 13 M 850W provides best-in-class voltage regulation and efficiency. That makes it perfect for building very quiet systems or upgrading gaming and media creation PCs
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
