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essential
Article number: BN291

PURE POWER 11

350W

Exceptionally Quiet, Superior Reliability, Great Value

Pure Power 11 350W offers peerless dependability and best-in-class features. Whether you’re assembling a very quiet system or upgrading an existing PC, your build will benefit from this PSU that simply has the best combination of features at a very popular prize.

  • 80 PLUS® Bronze efficiency (up to 87%)
  • Two strong 12V-rails
  • Silence-optimized 120mm be quiet! fan
  • One PCI express connector for GPU card support
  • High-quality sleeved cables with easy-plug HDD connector  
  • Full suite of top safety features 
  • 5-year manufacturer’s warranty
Further models
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Characteristics

80 PLUS® BRONZE CERTIFICATION

Very high operating efficiency

Pure Power 11 350W is certified 80 PLUS Bronze with an efficiency rating of up to 87% – a truly outstanding level for this class of PSU. The most compelling benefit: lower power consumption and consequently lower costs, and cooler, quieter operation.

POWER AND COMPATIBILITY FOR YOUR SYSTEM

The best combination of features and performance at a very popular price

Pure Power 11 offers 350W of continuous power with two independent 12V rails for signal stability and one PCI express connector for GPU card support.

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-QUALITY SLEEVED CABLES

Keeping your system tidy and good-looking

Pure Power 350W is equipped with high-quality sleeved cables that simplify component installation, increase airflow and improve cooling. The All-in-one cable has a convenient easy-plug HDD connector.

All models at a glance:

Product Series

General data

ModelPURE POWER 11 350W
Continuous power (W)350
Peak power (W)400
Form factor ATX 12VVersion 2.4
Form factor EPS 12V-
Modular Cable management-
Topology-
Wire-free design (DC-side)-
Voltage (Vac)100 - 240
Frequency (Hz)50 - 60
Input current (A)6 / 3
PFCactive
Power factor at 100% load>0.99
Compliant to Intel C6/C7✓
Power consumption in standby (W)0.1
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)2
12V single rail operation-
Overclocking key-
+3.3V (A)21
+5V (A)15
+12V1 (A)18
+12V2 (A)18
+12V3 (A)-
+12V4 (A)-
+12V5 (A)-
+12V6 (A)-
-12V (A)0.3
+5Vsb (A)2.5
Max. combined power 12V (W)336
Max. combined power 3.3V + 5V (W)110
Hold-up time (ms @ 100%)17
Power good signal100 - 500ms

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-dependent1000
Temperature control for case fans-
dB(A) at 20% load11
dB(A) at 50% load11.1
dB(A) at 100% load16.4

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 certificationBronze
Efficiency (%) at 230V, 20% load84
Efficiency (%) at 230V, 50% load87
Efficiency (%) at 230V, 100% load84

Environmental directives

Energy Star6.1
ErP✓
WEEE✓
RoHs✓

Cables / Connectors

Nvidia® SLI (RTX 3090) ready-
Cable managementFixed
Sleeved cablesSleeved cables
Flat cables-
Cable length to mainboard (cm)45
Cable length to first connector (cm)45
Maximum cable length (cm)90
All-in-one cable (SATA/PATA/FDD)✓
No. of cables5
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)1
PATA2
SATA5
FDD (Floppy)1
External fan connectors-

Casing

Dimensions without cable (L x W x D), (mm)150 x 150 x 86
Weight (kg)1.8
ColorBlack

Accessories

Thumb screws-
Screws✓
Cable ties✓
Velcro cable ties-
Box/Bag for PSU/Cables-
User manual languagesDE, EN, ES, FR, PL, RU
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 numberBN291
EAN code4260052186329
Dimensions, package (L x W x H), (mm)240 x 210 x 96
Gross weight, package (kg)2.06
Pieces per packaging unit6
Dimensions, shipping box (L x W x H), (mm)514 x 326 x 241
Gross weight, shipping box (kg)13.56
RRP (€)52.90

PURE POWER 11 | 350W
Article number: BN291

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