be quiet! Straight Power 11
be quiet!

Straight Power 11

Model Straight Power 11Part no. BN281EAN 4260052185773

67 specifications
  • Noise8.4 dB
  • Weight1.78 kg
  • ColourBlack
  • Total power750 W
  • Motherboard power connector20+4 pin ATX
  • PurposePC
See all specifications

Overview

Noise
8.4 dB
Weight
1.78 kg
Colour
Black
Total power
750 W
Motherboard power connector
20+4 pin ATX
Purpose
PC
Brand
be quiet!
Model
Straight Power 11
Part numbers
BN281, BN618, BN620, BN619, BN645, BN283 +4 more
EAN / UPC
4260052185773, 4260052185759, 4260052185766, 4260052185780 +2 more
Also known as
be quiet! Straight Power 11 power supply unit 750 W 20+4 pin ATX ATX Black

Specifications

67 specifications in 10 groups

Power

SpecificationValue
Total power750 W
Peak power820 W
AC input voltage100 - 240 V
AC input frequency50 - 60 Hz
Input current10 A
Power factor0.99
Power Factor Correction (PFC) typeActive
Combined power (+3.3V)150 W
Combined power (+12V)750 W
Combined power (+5V)150 W
Combined power (-12V)6 W
Combined power (+5Vsb)15 W
Max output current (+3.3V)25 A
Max output current (+12V1)20 A
Max output current (+12V2)20 A
Max output current (+12V3)24 A
Max output current (+12V4)24 A
Max output current (+5V)25 A
Max output current (-12V)0.5 A
Max output current (+5Vsb)3 A
Efficiency93%
Hold time19.6 ms
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage

Ports & interfaces

SpecificationValue
Motherboard power connector20+4 pin ATX
Motherboard power cable length60 cm
Number of PATA power connectors4
Number of SATA power connectors11
SATA power cable length550 mm
PCI Express power connectors (6+2 pin)4
PCI Express power cable length60 cm
CPU power connector (4+4 pin)Yes
CPU power cable length70 cm
Floppy disk drive connectorYes
PCI Express connectorYes
Cabling typeFully-Modular

Performance

SpecificationValue
PurposePC
Power supply unit (PSU) form factorATX
80 PLUS certification80 PLUS Gold
ATX version2.4
EPS version2.92
Silent modeYes
Bearing technologyFDB

Design

SpecificationValue
Product colourBlack
Cooling typeActive
Fan diameter13.5 cm
Number of fans1 fan(s)
IlluminationNo
On/off switchYes

Certificates

SpecificationValue
Compliance certificatesRoHS
CertificationCE, FCC, TÜV, cTUVus, RCM, BSMI, CU

Weight & dimensions

SpecificationValue
Width150 mm
Depth170 mm
Height86 mm
Weight1.78 kg

Packaging data

SpecificationValue
ManualYes
Package width248 mm
Package depth328 mm
Package height102 mm
Package weight3.34 kg

Technical details

SpecificationValue
Sustainability certificatesENERGY STAR

Logistics data

SpecificationValue
Harmonized System (HS) code84733020

Other features

SpecificationValue
Screws includedYes
Cable ties includedYes
Noise level (silent mode, <30%)8.4 dB
Noise level (quiet mode, 50%)9.01 dB
Noise level (full-load mode, 100%)21.23 dB
Cable managementYes

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