Skip to content

be quiet! · 750 W · ATX

be quiet! Straight Power 12 750W

ATX 3.1 · 80 PLUS Platinum · Modular

Capability
76
Cap / price
21
Wattage value
17
Amazon
$355
$355
Available on Amazon Updated Aug 30, 2026
Capability75.9
Capability / price21.4
Wattage value16.9
$355 on Amazon PSU table Compare this PSU

Size this PSU for a complete buildThe Builder unlocks PSU choices after it knows the CPU, GPU, case format, and estimated demand. Calculate build power first

Written analysis

be quiet! Straight Power 12 750W at a glance

The be quiet! Straight Power 12 750W is a 750 W ATX power supply built to the ATX 3.1 generation. Efficiency is listed as 80 PLUS Platinum. Cables are modular.

The calculated capability score is 75.9, averaging the available wattage, recorded efficiency percentage, and warranty inputs against fixed references. Listed warranty is 10 years. +12V output is 62 A.

Best fit: Performance desktops whose calculated component load fits comfortably within a 750–999 W supply.

Platform and cooling

Dimensions are listed as 160 x 150 x 86 mm. Cooling fan size is 135 mm. The unit uses 1 +12V rail at up to 62.50 A per rail. Certifications include 80 PLUS® Platinum.

Current value

At $355, price per kilowatt is $472.79. Capability / price is 21.4 and wattage value is 16.9. Compare nearby supplies below; wattage alone does not determine value.

Unit data

Full specifications

Wattage, efficiency, platform size, electrical outputs, connectors, cooling, and value in one technical sheet.

General

Manufacturer
be quiet!
PSU
be quiet! Straight Power 12 750W
Launch price
Amazon price
$355
Amazon availability
Available
Price updated
Aug 30, 2026

Power & efficiency

Wattage
750 W
Efficiency
80 PLUS Platinum
Recorded efficiency
93%
Warranty
10 years

Value

Amazon price
$355
Price / kW
$472.79
Capability
75.9
Capability / price
21.4
Wattage value
16.9

Platform & size

ATX generation
3.1
Form factor
ATX
Dimensions
160 x 150 x 86 mm
Modular
Yes
Fanless
No

Electrical

Input voltage
100-240
+12V output
62 A
+5V output
25 A
+3.3V output
25 A
+12V rails
1
Max amps / rail
62.50 A

Cooling & build

Fan size
135 mm
Fan stop
No
Certifications
80 PLUS® Platinum

Additional information

Also listed as
Straight Power 12 750W
Color
Black

Amazon

Price history

Nearby capability

Similar PSUs

Power supplies close to be quiet! Straight Power 12 750W on calculated capability. Open the PSU table to sort, filter, and compare side by side.

Compare these in the PSU table

Discussion

Comments on be quiet! Straight Power 12 750W

No comments yet.

Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Straight Power 12 750W is certified with 80 PLUS Platinum and an energy efficiency rating of up to 93.8%. This provides lots of benefits for your high-end system, including less power consumption and an overall cooler and quieter operation.

Straight Power 12 750W 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 750W of continuous power with one massive 12V rail. Even if the graphics card demands excessive power for a short time: Straight Power 12 750W 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 750W 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.