be quiet! Straight Power 12

1200 W · 80+ Platinum · Fully modular

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Wattage 1200 W
Efficiency 80+ Platinum
Modular Fully modular
Form factor ATX

be quiet! Straight Power 12 is a 1200 W power supply rated 80+ Platinum (fully modular). Pick one with some headroom above your build's draw. It came out in 2023.

Released: 2023-06-16

Specifications

Key specs

Wattage: 1200 W
Efficiency: 80+ Platinum
Modular: Fully modular
Form factor: ATX
Released: 2023-06-16
Part number: BN339
EAN / UPC: 4260052189443

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
Hold time: 23 ms
Efficiency: 92.4%
Power protection features: Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage

Ports & interfaces

Motherboard power connector: 20+4 pin ATX
Motherboard power cable length: 60 cm
Number of SATA power connectors: 9
Number of PATA power connectors: 2
SATA power cable length: 550,700,850,1000 mm
Peripheral (Molex) power cable length: 1000,850 mm
EPS power connector (8-pin): Yes
EPS power connector (4+4 pin): Yes
PCI Express power connectors (6+2 pin): 4
PCI Express power connectors (16-pin): 2
PCI Express power cable length: 60 cm
CPU power cable length: 70 cm
PCI Express connector: Yes
Cabling type: Fully-Modular

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Performance

80 PLUS certification: 80 PLUS Platinum
Supported motherboard form factors: ATX, micro ATX, Mini-ATX
Purpose: PC
Power supply unit (PSU) form factor: ATX
ATX version: 3.0
EPS version: 2.92
Noise level: 32.2 dB
Bearing technology: FDB
Mean time between failures (MTBF): 100000 h

Design

Product colour: Black
Cooling type: Active
Fan diameter: 13.5 cm
Number of fans: 1 fan(s)
Fan speed: 0 - 2600 RPM
On/off switch: Yes

Operational conditions

Operating temperature (T-T): 0 - 40 °C

Weight & dimensions

Width: 150 mm
Depth: 180 mm
Height: 86 mm
Weight: 2.04 kg

Technical details

Sustainability compliance: Yes
Sustainability certificates: Triman, ENERGY STAR, ErP

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About this product

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.

Datasheet (PDF)

Straight Power 12 vs similar power supplies

	be quiet! Straight Power 12	be quiet! POWER ZONE 2 \| 1200 W	ASUS ROG-STRIX-1200P-GAMING-E 1200W Power Supply	ASUS ROG-THOR-1200P3-GAMING-E 1200W Power Supply
Wattage	1200 W	1200 W	1200 W	1200 W
Efficiency	80+ Platinum	80+ Platinum	80+ Platinum	80+ Platinum
Modular	Fully modular	Fully modular	Fully modular	Fully modular
Form factor	ATX	ATX	ATX	ATX
Released	2023	2026	2026	2026