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be quiet! Pure Power 11 400W power supply unit 20+4 pin ATX ATX Black

£61.40 £51.17

400 W, ATX 2.4, 1x ATX 20+4-pin, 5x SATA, 2x PATA, FDD, 2x PCI-E 6+2-pin, 1x P4+4, 120mm fan, 14.9dB max.

80PLUS® Gold efficiency (up to 92%)
Two strong 12V-rails
Stable operation thanks to Active Clamp and Synchronous Rectifier (SR) technology
DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions
Silence-optimized 120mm be quiet! fan
Multi-GPU support with two PCIe connectors
High-quality sleeved cables with easy-plug HDD connector
Full suite of top safety features
Meets latest Intel® C6/C7, ErP and Energy Star guidelines
Supports all Intel® and AMD™ processors
Product conception, design and quality control in Germany

More Information

More Information
Purpose	PC
Total power	400 W
Power supply unit (PSU) form factor	ATX
SKU	BN292
EAN	4260052186336
Manufacturer	be quiet!
Availability	Y
Product Videos	View Video
PDF URLs	View PDF

Reasons To Buy

80 PLUS GOLD CERTIFICATION

Pure Power 11 400W is certified 80 PLUS Gold with an efficiency rating of up to 92% – 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

Pure Power 11 offers 400W of continuous power with two independent 12V rails for signal stability and two PCI express connectors for multi-GPU systems. It is suited to very quiet systems, for upgrading or building multimedia or multi-GPU gaming systems.

INNOVATIVE TECHNOLOGIES

The use of Active Clamp and Synchronous Rectifier technologies provides very stable operation. The PSU is equipped with DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions. This ensures secure operation for next generation processors and graphics cards.

EXCEPTIONALLY SILENT OPERATION

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

Pure Power 400W 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.

Description

Exceptionally Quiet, Superior Reliability, Great Value

Pure Power 11 400W offers peerless dependability and best-in-class features. Whether you’re assembling a very quiet system, building a multi-GPU gaming 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 price.

80 PLUS® GOLD CERTIFICATION
Very high operating efficiency
Pure Power 11 400W is certified 80 PLUS Gold with an efficiency rating of up to 92% – 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 400W of continuous power with 2 independent 12V rails for signal stability and 2 PCI express connectors for multi-GPU systems. It is suited to very quiet systems, for upgrading or building multimedia or multi-GPU gaming systems.

INNOVATIVE TECHNOLOGIES
DC-to-DC, Active Clamp and Synchronous Rectifier
The use of Active Clamp and Synchronous Rectifier technologies provides very stable operation. The PSU is equipped with DC-to-DC conversion for even tighter voltage regulation under heavy cross-loading conditions. This ensures secure operation for next generation processors and graphics cards.

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 400W 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.

Specifications

Cooling
Fan diameter	12 cm
Number of fans	1 fan(s)
Design
80 PLUS certification	80 PLUS Gold
Safety	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CU, CCC
Certification	ErP, WEEE
Product colour	Black
Fan diameter	12 cm
Number of fans	1 fan(s)
Power
Total power	400 W
Peak power	450 W
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Input current	6 A
Power factor	0.99
Power Factor Correction (PFC) type	Active
Combined power (+3.3V)	120 W
Combined power (+12V)	384 W
Combined power (+5V)	120 W
Combined power (-12V)	3.6 W
Combined power (+5Vsb)	15 W
Max output current (+3.3V)	24 A
Max output current (+12V1)	24 A
Max output current (+12V2)	20 A
Max output current (+5V)	15 A
Max output current (-12V)	0.3 A
Max output current (+5Vsb)	3 A
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Hold time	29 ms
Efficiency	92%
Ports & interfaces
Motherboard power cable length	45 cm
SATA power cable length	450,600,750 mm
PCI Express power cable length	50 cm
CPU power cable length	6 cm
Motherboard power connector	20+4 pin ATX
Number of SATA power connectors	5
Number of PATA power connectors	2
Peripheral (Molex) power connectors (4-pin)	0
PCI Express power connectors (6+2 pin)	2
CPU power connector (4+4 pin)	Yes
Floppy disk drive connector	Yes
Cabling type	Non-Modular
Performance
Power supply unit (PSU) form factor	ATX
Noise level (quiet mode, 50%)	11.4 dB
Noise level (silent mode, <30%)	10.5 dB
Noise level (full-load mode, 100%)	14.9 dB
80 PLUS certification	80 PLUS Gold
Purpose	PC
ATX version	2.4
Safety	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CU, CCC
Certification	ErP, WEEE
Bearing technology	Rifle
Harmonized System (HS) code	84733020
Certificates
Certification	ErP, WEEE
Compliance certificates	RoHS
80 PLUS certification	80 PLUS Gold
Safety	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CU, CCC

Safety regulation & standards
Safety	CE, CB, TÜV, FCC, cTUVus, RCM, BSMI, CU, CCC
Weight & dimensions
Width	150 mm
Depth	150 mm
Height	86 mm
Weight	1.93 kg
Packaging data
Screws included	Yes
Cable ties included	Yes
Package depth	240 mm
Package width	210 mm
Package height	96 mm
Package type	Box
Package weight	2.22 kg
Manual	Yes
Technical details
Sustainability certificates	ENERGY STAR
Compliance certificates	RoHS
Packaging content
Screws included	Yes
Cable ties included	Yes
Manual	Yes
Logistics data
Master (outer) case width	326 mm
Master (outer) case length	514 mm
Master (outer) case height	241 mm
Products per master (outer) case	6 pc(s)
Master (outer) case gross weight	14.5 kg
Harmonized System (HS) code	84733020
Other features
Screws included	Yes
Cable ties included	Yes
Noise level (quiet mode, 50%)	11.4 dB
Noise level (silent mode, <30%)	10.5 dB
Noise level (full-load mode, 100%)	14.9 dB
Manual	Yes
Harmonized System (HS) code	84733020

Videos

Delivery Details

UK distributors.
Order before 4 pm for next-day delivery.
Standard (2-3 days) £7.50
Next Day £9.99
Free standard delivery over £100

There are deivery surcharges to these postcodes:

Postcode	Charge
IV3-40	£20
IV52-54	£20
IV63	£20
KW1-14	£20
PA10-40	£20
PH19-40	£20
PH50	£20
HS	£50
IV41-51	£50
IV55-56	£50
KA27-28	£50
KW15-17	£50
PA41-49	£50
PA60-62	£50
PA76-78	£50
PH41-44	£50
ZE	£50
IM	£50
JE	£50
GY	£50
TR21-25	£50
BT	£20