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#3 in Best PC Power Supplies (PSU)

be quiet! Straight Power 12-1500w Modular Power Supply | 80 Plus Platinum ATX 3.1 Compliant | for PCIe 5.0 GPUs and GPUs with 6+2…

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Best for

Best premium (Platinum)

Amazon rating

★★★★★4.7(1,165)

Amazon aggregate, one input among many in the Verdict Score

Verdict scoreGreat
85/ 100

Based on 1 trusted source

Current price

$249.90

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Updated Jun 27, 2026 · 1 min read

be quiet! Straight Power 12-1500w Modular Power Supply | 80 Plus Platinum ATX 3.1 Compliant | for PCIe 5.0 GPUs and GPUs with 6+2…

Sources behind this verdict

11 reviewers weighted by source trust

Methodology →

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

Across the reviewers we read, the be quiet! Straight Power 12 1500W is the standout 80 PLUS Platinum option for builders who want maximum capacity and near-silence. overclock3d measured roughly 36.4 dB(A) even at 100% load and called it incredibly quiet, while guru3d praised the internals as 'great.' High-trust r/buildapc threads echo this, with one comparison concluding the Straight Power 12 has better components, higher efficiency and quieter behavior under load than the cheaper Pure Power 12 line.

What reviewers liked

  • Measured near-silent operation (~36 dB(A) at full load per overclock3d) with 80 PLUS Platinum efficiency
  • High-trust community consensus rates it a premium-tier platform above cheaper be quiet! lines
  • Massive 1500W capacity with surge/excursion handling for the most demanding systems

Where it falls short

  • guru3d criticizes the limited count of native PCIe 5.0 (12+4) connectors for the wattage
  • Community notes there is no zero-RPM fan mode, so the fan always spins
  • Strongest endorsements are community-tier; far fewer ratings than the mainstream Corsair units

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Across the reviews

Synthesis · not our verdict

Across the reviewers we read, the be quiet! Straight Power 12 1500W is the standout 80 PLUS Platinum option for builders who want maximum capacity and near-silence. overclock3d measured roughly 36.4 dB(A) even at 100% load and called it incredibly quiet, while guru3d praised the internals as 'great.' High-trust r/buildapc threads echo this, with one comparison concluding the Straight Power 12 has better components, higher efficiency and quieter behavior under load than the cheaper Pure Power 12 line.

Owners in high-trust community threads describe it as fully modular, very efficient and effectively inaudible in normal use. Several note its Platinum certification (up to ~93.9%) and surge protection as reasons they trust it for a flagship build.

Reviewers do surface two consistent caveats: guru3d called out that the unit ships with only two 12+4 (PCIe 5.0) connectors, which is a disappointment at this capacity, and community threads note there's no zero-RPM fan mode, so the fan always spins (albeit quietly). One r/buildapc user also reported idle shutdowns when pairing it in a problematic configuration, though that appears to be an isolated case.

Key specs

Source: Amazon listing
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.

What customers say

3 verified voices
Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.
Supportingvia Newegg customers
I've foudn be quite straight power 12 (1500W) at a suspicious low price (about 250€) despite being 1500W and 80 plus platinum. Is anyone using it to drop any ...
Trustedvia r/buildapc
All the reviews of this model say the fan is incredibly quiet, there's just no zero RPM fan mode on it.
Supportingvia r/buildapcsales

Trust tier reflects our editorial assessment of the source, not the individual quote. Hover for the rationale. See how we tier sources →

Video review

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be Quiet Straight Power 12 1500W Unboxing & Review” · YouTube

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