be quiet! Straight Power 11 1000W PSU, 80 PLUS Platinum, Virtually Inaudible Silent Wings 3 Fan, 6 PCIe Connectors, 5 Year Warranty


  • Wattage: 1000W
  • Size/Version: ATX
  • Modular: Fully
  • SATA Connections: 11
  • Certification: Platinum

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SKU: BN309 Category:


be quiet! Straight Power 11 Platinum 1000W raises the bar for systems that demand virtually inaudible operation and outstanding efficiency.

80 PLUS® Platinum efficiency (up to 94.1%)
Virtually inaudible Silent Wings 3 135mm fan
Funnel-shaped fan opening of the PSU case for high airflow intake
Wire-free inside the PSU on the DC side for enhanced cooling and longevity
Modular cables for maximum build flexibility
6 PCIe connectors for overclocked high-end GPUs
Japanese 105°C-rated capacitors ensure stability and reliability
ErP and Energy Star 7.0 ready
5-year manufacturer’s warranty

80 PLUS® PLATINUM CERTIFIED – One of the highest efficiency certificates available
Straight Power 11 Platinum 1000W is certified with 80 PLUS Platinum efficiency, reaching up to 94.1%. 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.

SILENT WINGS 3 FAN – Provides virtually inaudible operation
The high-end Silent Wings 3 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.

FUNNEL-SHAPED FAN OPENING – Higher cooling performance
The fan inlet of the Straight Power 11 Platinum 1000W is funnel-shaped. It causes an increased throughput of air which benefits to a higher cooling performance.

WIRE-FREE DESIGN INSIDE THE PSU – Pushing the longevity of components to a maximum
An absolute innovation: The Straight Power 11 Platinum 1000W is wire-free on the DC side inside the PSU body. This results in improved cooling airflow and less signal disturbance, simply because of a lack of wiring, and ultimately pushes the lifetimes of the components to a maximum.

MODULAR CABLES – Utmost convenience and compatibility
Thanks to the modular cables, all cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.

JAPANESE CAPACITORS – A testament to high quality
Only the best components are used in Straight Power 11 Platinum 1000W. That is why we have built only high-quality Japanese capacitors into the PSU chassis. They are rated to 105°C, ensuring stability, reliability and a long operating life.


Straight Power 11 Platinum 1000W

Continuous power (W)

Peak power (W)

Form factor
Version 2.51

Form factor EPS 12V
Version 2.92

Full bridge + LLC + SR + DC/DC

Voltage (Vac)
100 – 240

Frequency (Hz)
50 – 60

Input current (A)
13 / 6.5

Power factor at 100% load

Modern standby

Power consumption in standby (W)

Average life time (h / 25°C)

Operating temperature up to (°C)

Dimensions without cable (L x W x H) (mm)
170 x 150 x 86

Modular cables

Sleeved cables

Maximum cable length (cm)

Cable length to motherboard (cm)

No. of cables

ATX-Motherboard (20+4-pin)

P4+4 (CPU)

P8 (CPU)

PCI-e 6+2-pin (GPU)



FDD (Floppy)

Additional information

Weight 3.7 kg


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