essential
Article number: BN670

PURE POWER 11 FM

550W

EXCEPTIONAL QUIET, SUPERIOR FEATURES

Pure Power 11 FM 550W offers peerless dependability and best-in-class features such as modular cable management. Whether you are assembling a very quiet system, upgrading your PC, or building a gaming system with a powerful high-end GPU: Pure Power 11 FM 550W offers the best combination of features at a very popular price.

  • 80 PLUS® Gold efficiency (up to 93.5%)
  • Modular cables for maximum build flexibility
  • Two strong 12V-rails
  • Silence-optimized 120mm be quiet! fan
  • Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DC
  • Two PCIe connectors for powerful GPUs
  • Full suite of top safety features
  • Five-year manufacturer’s warranty

80 PLUS® GOLD CERTIFICATION

Very high operating efficiency

Pure Power 11 FM 550W is certified 80 PLUS Gold with an efficiency rating of up to 93.5% – a truly outstanding level for this class of PSU. The most compelling benefit: lower power consumption and consequently lower costs, and cooler, quieter operation.

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.

POWER AND COMPATIBILITY

for your system

Pure Power 11 FM offers 550W of continuous power with two independent 12V rails for signal stability and two PCI express connectors to support powerful graphics cards. Whether you are building a very quiet system or gaming system: Pure Power 11 FM 550W is always the correct choice!

EXCEPTIONALLY SILENT OPERATION

Achieved by a silence-optimized 120mm be quiet! fan

The silence-optimized 120mm be quiet! fan is thermally governed to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality and the almost inaudible operation that be quiet! is famous for.

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.

All models at a glance:

Product Series

General data

ModelPure Power 11 FM 550W
Continuous power (W)550
Peak power (W)600
Form factorVersion 2.52
Form factor EPS 12VVersion 2.92
Modular Cable management
TopologyLLC + SR + DC/DC
Wire-free design (DC-side)
Voltage (Vac)100 - 240
Frequency (Hz)50 - 60
Input current (A)10 / 5
PFCactive
Power factor at 100% load>0.98
Compliant to Intel C6/C7
Power consumption in standby (W)<0.14
Average life time (h / 25°C)100,000
Operating temperature up to (°C)40

Infographics

open all / close all

Output

12V rails (multi-rail operation)2
12V single rail operation-
Overclocking key-
+3.3V (A)20
+5V (A)20
+12V1 (A)28
+12V2 (A)24
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)3
Max. combined power 12V (W)550
Max. combined power 3.3V + 5V (W)120
Hold-up time at 100% load (ms)17.6
Power good signal100 - 150ms

Fan / Cooling technology

Fan typeSilence-optimized be quiet! fan
+SilentWings-
Motor technology4-pole fan motor
Bearing technologyRifle
Fan size (mm)120
Max. fan speed (rpm), temperature-dependent1800
Temperature control for case fans-
dB(A) at 20% load8.8
dB(A) at 50% load9
dB(A) at 100% load18.1

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
FCC
cRUus
cTUVus
RCM (Australia)
BSMI
CU (Russia)-
CCC

Eco / Efficiency

80 PLUS certificationGold
Efficiency (%) at 230V, 20% load89.8
Efficiency (%) at 230V, 50% load93.5
Efficiency (%) at 230V, 100% load92

Environmental directives

Energy Star8.0
ErP
WEEE
RoHs

Cables / Connectors

Nvidia® SLI (RTX 3090) ready-
Cable managementModular
Sleeved cablesSleeved cables
Flat cablesP8 / PCIe / drives
Cable length to mainboard (cm)55
Cable length to first connector (cm)50
Maximum cable length (cm)110
All-in-one cable (SATA/PATA/FDD)
No. of cables7
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
PATA2
SATA9
FDD (Floppy)1
External fan connectors-

Casing

Dimensions without cable (L x W x D), (mm)160 x 150 x 86
Weight (kg)1.45
ColorBlack

Accessories

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

Service

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

Logistics data, RRP

Article numberBN670
EAN code4260052188170
Dimensions, package (L x W x H), (mm)298 x 195 x 97
Gross weight, package (kg)2.86
Pieces per packaging unit6
Dimensions, shipping box (L x W x H), (mm)615 x 312 x 225
Gross weight, shipping box (kg)17.9
RRP (€)89.90

PURE POWER 11 FM | 550W
Article number: BN670

Compatible accessories

Upgrade Check

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

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