Product comparison · 2 power supply units

be quiet! System Power 11 550W vs be quiet! System Power 11 750W

Key differences

Total power
- System Power 11 550W:550 W
- System Power 11 750W:750 W
Combined power (+12V)
- System Power 11 550W:550 W
- System Power 11 750W:750 W
Max output current (+12V1)
- System Power 11 550W:45.83 A
- System Power 11 750W:62.5 A
Efficiency
- System Power 11 550W:89.7%
- System Power 11 750W:90%
Hold time
- System Power 11 550W:16.86 ms
- System Power 11 750W:17.34 ms
Number of SATA power connectors
- System Power 11 550W:5
- System Power 11 750W:6
PCI Express power connectors (6+2 pin)
- System Power 11 550W:2
- System Power 11 750W:3
Noise level
- System Power 11 550W:24.2 dB
- System Power 11 750W:33.4 dB

Differences highlightedShow differences only

Comparison of System Power 11 550W, System Power 11 750W
63 specifications	A be quiet! System Power 11 550W View product	B be quiet! System Power 11 750W View product
Power5 differ
Total powerDiffers	550 W	750 W
Combined power (+12V)Differs	550 W	750 W
Max output current (+12V1)Differs	45.83 A	62.5 A
EfficiencyDiffers	89.7%	90%
Hold timeDiffers	16.86 ms	17.34 ms
Ports & interfaces2 differ
Number of SATA power connectorsDiffers	5	6
EPS power connector (8-pin)Known for one	Unknown — not stated by the source	Yes
PCI Express power connectors (6+2 pin)Differs	2	3
Performance1 differ
Noise levelDiffers	24.2 dB	33.4 dB
Design1 differ
Fan speedDiffers	0 - 1800 RPM	0 - 2100 RPM
Weight & dimensions1 differ
WeightDiffers	1.92 kg	2.04 kg
Packaging data1 differ
Package weightDiffers	2.3 kg	2.4 kg
Logistics data1 differ
Shipping (inner) case gross weightDiffers	14.9 kg	15.6 kg

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.