Article number: BN617

STRAIGHT POWER 11

550W

World Class Quiet and Efficiency

be quiet! Straight Power 11 550W raises the bar for systems that demand virtually inaudible operation without power quality compromises.

  • 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 
  • Full cable management for maximum build flexibility
  • 80PLUS® Gold efficiency (up to 93%)
  • Powerful multi-GPU support with two PCI-Express connectors
  • Japanese 105°C-rated capacitors ensure stability and reliability
  • ErP and Energy Star 6.1 ready
  • 5-year manufacturer’s warranty

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 550W 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 550W 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.

FULLY MODULAR CABLE MANAGEMENT

Utmost convenience and compatibility

Thanks to the fully modular cable management, 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.

80PLUS® GOLD CERTIFIED

Impressively high efficiency

Straight Power 11 550W is certified with 80PLUS® Gold efficiency, reaching up to 93%. This gives less power consumption and a cooler and quieter operation. Truly a benefit for any system.

HIGH-CLASS TECHNOLOGIES

Compatibility for the systems of tomorrow

The use of LLC and Synchronous Rectifier (SR) provides very stable operation and enhanced voltage regulation.The PSU is equipped with DC-to-DC conversion for tight voltage regulation even under heavy cross-loading conditions. This ensures reliable operation with the next generation of processors and graphics cards.

JAPANESE 105° CAPACITORS

A testament to high quality

Only the best components are used in Straight Power 11 550W. 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.

All models at a glance:

Features

General data

Model Straight Power 11 | 550W
Continuous power (W) 550
Peak power (W) 600
Form factor ATX 12V Version 2.4
Form factor EPS 12V Version 2.92
Modular cable management
Topology LLC + SR + DC/DC
Wire-free design (DC-side)
Voltage (Vac) 100 - 240
Frequency (Hz) 50 - 60
Input current (A) 8/4
PFC active
Power factor at 100% load >0.99
Compliant to Intel C6/C7
Power consumption in standby (W) <0.12
Average life time (h / 25°C) 100.000
Operating temperature up to (°C) 40

Infographics

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Output

12V rails (multi-rail operation) 4
12V single rail operation -
Overclocking key -
+3.3V (A) 24
+5V (A) 24
+12V1 (A) 18
+12V2 (A) 18
+12V3 (A) 20
+12V4 (A) 20
+12V5 (A) -
+12V6 (A) -
-12V (A) 0.3
+5Vsb (A) 3
Max. combined power 12V (W) 549.6
Max. combined power 3.3V + 5V (W) 130
Hold-up time (ms @ 100%) 18.9

Fan / Cooling technology

Fan type be quiet! Silent Wings 3
+SilentWings
Motor technology 6-pole fan motor
Bearing technology FDB
Fan size (mm) 135
Max. fan speed (rpm), temperature-dependent 1,500
Temperature control for case fans -
dB(A) at 20% load 9.02
dB(A) at 50% load 9.46
dB(A) at 100% load 17.22

Protection

OCP (over current protection)
OVP (over voltage protection)
UVP (under voltage protection)
SCP (short circuit protection)
OTP (over temperature protection)
OPP (over power protection)

Safety certification

CE
CB
TÜV
Nemko (N) -
Semko (S) -
Fimko (FI) -
Demko (D) -
FCC
cRUus -
cTUVus
RCM (Australia)
BSMI
CU (Russia)
CCC

Eco / Efficiency

80PLUS certification Gold
Efficiency (%) at 230V, 20% load -
Efficiency (%) at 230V, 50% load -
Efficiency (%) at 230V, 100% load -

Environmental directives

ENERGY STAR 6.1
ErP
WEEE
RoHS

Cable management / Connectors

Multi-GPU ready
Modular cable management
Fully modular
Sleeved cables
Flat cables -
Cable length to mainboard (cm) 60
Cable length to first connector (cm) 55
Maximum cable length (cm) 115
All-in-one cable (SATA/PATA/FDD)
No. of cables 8
ATX-Motherboard (20+4-pin) 1
P8 (CPU) -
P4+4 (CPU) 1
P4 (CPU) -
PCI-E 6-pin (GPU) -
PCI-E 6+2-pin (GPU) 2
PATA 4-pin 3
SATA 15-pin (HDD, Drives) 9
FDD (Floppy) 1
External fan connectors -

Casing

Dimensions without cable (L x W x D), (mm) 160 x 150 x 86
Weight (kg) 1.51
Color Black

Accessories

Thumb screws -
Screws
Cable ties
Velcro cable ties -
Box/Bag for PSU/Cables -
User manual languages EN, DE, FR, PL, ES, RU
OCK slot bracket with switch / OCK jumper -
SFX-to-ATX adapter bracket -

Service

Warranty (Years) 5
Express replacement service in first year DE, FR
International hotline / free of charge ✓ / DE, FR

Logistics data, RRP

Article number BN617
EAN code 4260052185810
Dimensions, package (L x W x H), (mm) 328 x 248 x 102
Gross weight, package (kg) 2.76
Pieces per packaging unit 6
Dimensions, shipping box (L x W x H), (mm) 651 x 282 x 346
Gross weight, shipping box (kg) 17.79
RRP (€) 115.00

Straight Power 11 | 550W
Article number: BN617

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Compatible accessories

Upgrade Check

You are already using a be quiet! power supply and want to upgrade your system with a new Straight Power 11 | 550W ? Check here which cables are compatible and don't need to be replaced.

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