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be quiet!

be quiet! Straight Power 12

On Off Switch
Cable Tie S Included
Pci Express Connector
Eps Power Connector 8 Pin
Sustainability Compliance
be quiet! Straight Power 12, 1200 W, 110 - 240 V, 1270 W, 50/60 Hz, 15/7.5 A, 150 W
Brand: be quiet!
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At a Glance

Key highlights and verified hardware specifications

Detailed specs deep dive2 PDF manuals available
Fan Diameter Mm
13.5 cm
Noise Level Db
32.2 dB
Cooling Type
Active
Weight
2.04 kg
Width
150 mm
Height
86 mm
Lowest Price
£203.99
Andote Score
6.4/10
Price Tier Avg
6.5/10
Category Avg
6.5/10
Price Trend
Stable

Andote Analysis

Rated: 8 Nov 2026Evaluated at £203.99
Hardware6.4/10
Andote Score6.4/10
Score Deciding Factors11 Key drivers
✓Competitive Price£203
Favorable price-to-performance ratio in categoryHigh Value
✓High-End Power Rating1200W
Top-tier capability in this category10.0/10
✕Limited Refresh Rate50Hz
Significantly below category average benchmark4.0/10
✕Limited Power Consumption1270W
Significantly below category average benchmark4.0/10
•Standard Noise Level32.2 dB
Solid standard benchmark for category7.0/10
!Heavy Weight2.04kg
Entry-level benchmark rating limits overall score6.2/10
✕Limited Number of Fans1.0
Significantly below category average benchmark4.8/10
•Standard Width150.0
Solid standard benchmark for category7.3/10
•Standard Depth180.0
Solid standard benchmark for category7.2/10
!Modest Height86.0
Entry-level benchmark rating limits overall score5.9/10
•Standard Fan Diameter13.5
Solid standard benchmark for category7.0/10
How We Calculate This Score

All parameters are evaluated as per the price. Our algorithm calculates each hardware specification's relative efficiency against peer products in the category based on its selling price, giving you an objective measure of value per pound. User ratings are not included in this calculation.

AI-powered analysis based on product specifications, price, and available data.

Price History

Current:£203.99
Lowest:£203.99
Average:£203.99
Price is stablePrice has remained consistent in the recent past.
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About be quiet! Straight Power 12

Detailed specs deep dive
Official user manuals, spec sheets, and 2 PDF documents are available for this model in the Detailed specs deep dive
Brand: be quiet! • Model: Straight Power 12Model: BN339Hardware Score: 6.4/10Andote Score: 6.4/10Price-Tier Avg: 6.5/10Category Avg: 6.5/10

World Class Quiet and Efficiency. Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.. 80 PLUS® PLATINUM CERTIFIED. Highly efficient operation. 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.. FUTURE-PROOF YOUR SYSTEM. Fulfills all ATX 3.0 specifications. Straight Power 12 1500W is an ATX 3.0 PSU and comes with both native integration of 2 12VHPWR connectors 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.. THE NEW STANDARD OF POWER. For massive transient loads. 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.. SILENT WINGS FAN. Provides virtually inaudible operation. 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.. FLAWLESS COOLING CONCEPT. For a longer lifespan. 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.. STATE-OF-THE-ART TECHNOLOGIES. Rock-steady signal stability and efficiency. With full bridge LLC Straight Power 12 1500W offers advanced technologies, resulting in higher efficiency, better regulation and lower ripple noise for an incomparably stable operation.. JAPANESE 105°C CAPACITORS. A testament to high quality. Only premium components are used in Straight Power 12 1500W. That is why this PSU features exclusively high-quality Japanese capacitors. They are rated at 105°C for stability, reliability, and a long operating life.. CONVENIENCE AND CONNECTIVITY. Maximum utility. Modular, sleeved cables of up to 100cm in length simplify component installation and reduce annoying clutter. This results in increased airflow and improved cooling - even in the largest PC cases.. Cooling. Fan diameter. 13.5 cm. Number of fans. 1 fan(s). Fan speed. 0 - 2600 RPM. Cooling type. Active. Performance. On/off switch. Yes. Power supply unit (PSU) form factor. ATX. 80 PLUS certification. 80 PLUS Platinum. Purpose. PC. ATX version. 3.0. EPS version. 2.92. Noise level. 32.2 dB. Mean time between failures (MTBF). 100000 h. Bearing technology. FDB. Supported motherboard form factors. ATX, micro ATX, Mini-ATX. Design. Product colour. Black. Illumination. No. Power. Total power. 1200 W. Peak power. 1270 W. AC input voltage. 110 - 240 V. AC input frequency. 50/60 Hz. Input current. 15/7.5 A. Power factor. 0.99. Combined power (+3.3V). 150 W. Combined power (+12V). 1200 W. Combined power (+5V). 150 W. Max output current (+3.3V). 25 A. Max output current (+12V1). 100 A. Max output current (+5V). 25 A. Max output current (-12V). 0.5 A. Max output current (+5Vsb). 3 A. Power protection features. Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage. Hold time. 23 ms. Efficiency. 92.4%. Ports & interfaces. Motherboard power cable length. 60 cm. SATA power cable length. 550,700,850,1000 mm. Peripheral (Molex) power cable length. 1000,850 mm. PCI Express power cable length. 60 cm. CPU power cable length. 70 cm. Motherboard power connector. 20+4 pin ATX. Number of SATA power connectors. 9. Number of PATA power connectors. 2. Peripheral (Molex) power connectors (4-pin). 0. EPS power connector (8-pin). Yes. PCI Express power connectors (6+2 pin). 4. PCI Express connector. Yes. Cabling type. Fully-Modular. EPS power connector (4+4 pin). Yes. PCI Express power connectors (16-pin). 2. Operational conditions. Operating temperature (T-T). 0 - 40 °C. Technical details. Sustainability compliance. Yes. Sustainability certificates. Triman, ENERGY STAR, ErP. Certificates. Compliance certificates. RoHS, Federal Communications Commission (FCC), UKCA, WEEE, CE. Packaging content. Cables included. CPU, SATA. Cable tie(s) included. Yes. Weight & dimensions. Width. 150 mm. Depth. 180 mm. Height. 86 mm. Weight. 2.04 kg. Packaging data. Package depth. 328 mm. Package width. 248 mm. Package height. 102 mm. Package type. Box. Package weight. 3.89 kg. Logistics data. Shipping (inner) case width. 28.2 cm. Shipping (inner) case net weight. 17 kg. Shipping (inner) case length. 44.7 cm. Shipping (inner) case height. 34.6 cm. Products per shipping (inner) case. 4 pc(s). Warranty period. 10 year(s). leaflet. leaflet

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