be quiet! System Power 11 550W is ATX 3.1 compliant and PCIe 5.1 compatible, 5-year manufacturer's warranty

Proven Reliability, Quiet Operation System Power 11 is the ATX 3.1 PSU for value-oriented PC builders that do not want to pass on reliability and quietness.

Highlights

• ATX 3.1 PSU with support for PCIe 5.1 GPUs and GPUs with 6+2 pin connectors
• Temperature-controlled 120mm quality fan reduces system noise
• Rock-solid stability with a strong 12V-rail
• Tight voltage regulation using DC-to-DC technology
• Up to one PCIe 5.1 12V-2x6 600W and up to 3 PCIe 6-2 connectors for high-end GPUs
• Dependable operation to support powerful GPUs
• Stand-by drain of less than 0.15 watts
• 80 PLUS Bronze efficiency (up to 90.0 %)
• 5-year manufacturer’s warranty
• Product conception, design and quality control in Germany

General

Model

System Power 11 550 W

Continuous power (W)

550

Peak power (W)

No

Form factor

Version 3.1

Form factor EPS 12V

Version 2.92

Topology

Double forward + DC-DC

Digitally controlled

No

Voltage (Vac)

200 - 240

Frequency (Hz)

50

Input current (A)

4

Power factor at 100% load

>0.98

Modern standby

Yes

Power consumption in standby (W)

<0.1

Average life time (h / 25°C)

>100,000

Operating temperature up to (°C)

40

Efficiency

• 80 PLUS certification
• Efficiency (%) at 230V, 2% load 64.4 Bronze
• Efficiency (%) at 230V, 10% load 84.4 Bronze
• Efficiency (%) at 230V, 20% load 88.6 Bronze
• Efficiency (%) at 230V, 50% load 89.7 Bronze
• Efficiency (%) at 230V, 100% load 86.6 Bronze

Fan and cooling technology

Cybenetics Noise Rating

No

Fan

Silence-optimized be quiet! fan

Fan size (mm)

120

Bearing technology

Rifle

Motor technology

4-pole fan motor

Max. fan speed (rpm)

1800

dB(A) at 10% load

10.4

dB(A) at 20% load

10.8

dB(A) at 50% load

11.0

dB(A) at 100% load

24.2

Output

Multi-rail operation (12V rails)

No

12V single rail operation

Yes

Overclocking key

No

+3.3V (A)

20

+5V (A)

20

+12V1 (A)

45.83

+12V2 (A)

no

+12V3 (A)

No

+12V4 (A)

No

+12V5 (A)

No

+12V6 (A)

No

-12V (A)

0.3

+5Vsb (A)

3

Max. combined power 12V (W)

550

Max. combined power 12V-2x6 (W)

300

Max. combined power 3.3V + 5V (W)

120

Hold-up time at 100% load (ms)

16.86

Hold-up time at 80% load (ms)

20.92

Power good signal (ms)

100 - 150

Cables and connectors

Modular cables

No

Sleeved cables

P24

Flat cables

P4+4, P4, PCIe, drives

Maximum cable length (cm)

55

Cable length to motherboard (cm)

79

No. of cables

7

ATX-Motherboard (20+4-pin)

1

P4+4 (CPU)

1

P8 (CPU)

No

P4 (CPU)

1

12V-2x6 cables

1

PCI-e 6+2-pin (GPU)

2

PCI-e 6-pin (GPU)

No

SATA

5

PATA

1

FDD (Floppy)

No

Protection

OTP (over temperature protection)

Yes

OCP (over current protection)

Yes

OPP (over power protection)

Yes

SCP (short circuit protection)

yes

OVP (over Voltage protection)

Yes

UVP (under Voltage protection)

Yes

SIP (Surge & Inrush protection)

Yes

Safety certification

BSMI

No

CB

No

CCC

No

CE

Yes

cRUus

No

cTUVus

No

CU

Yes

FCC

No

RCM

No

TUV

Yes

UKCA

Yes

IRAM

No

Environmental directives

ErP

Yes

WEEE

Yes

RoHS

Yes

Triman

No

Scope of delivery

Thumb screws

No

Screws

Yes

Cable ties

Yes

Velcro cable ties

No

User manual languages

No

OCK slot bracket with switch / OCK jumper

No

SFX-to-ATX adapter bracket

No

Casing

Dimensions without cable (L x W x H), (mm)

86 x 150 x 140

Weight (kg)

1.92

Color

Black

Logistics data and RRP

Dimensions, package (L x W x H), (mm)

268 x 195 x 97

Gross weight, package (kg)

2.3

Pieces per packaging unit

6

Dimensions, shipping box (L x W x H), (mm)

556 x 311 x 218

Gross weight, shipping box (kg)

14.9

Service

Warranty (Years)

5