Product comparison · 2 power supply units

be quiet! Straight Power E9 vs be quiet! Straight Power E9 CM

Key differences

Differences highlightedShow differences only

Comparison of Straight Power E9, Straight Power E9 CM
58 specifications	A be quiet! Straight Power E9 View product	B be quiet! Straight Power E9 CM View product
Power12 differ
Total powerDiffers	400 W	680 W
Peak powerDiffers	450 W	750 W
Input currentDiffers	3 - 6 A	5 - 10 A
Maximum input current (@110V)Differs	+12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V	+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Combined power (+3.3V)Differs	120 W	160 W
Combined power (+12V)Differs	384 W	660 W
Combined power (+5V)Differs	120 W	160 W
Max output current (+12V)Differs	32 A	55 A
Max output current (+12V3)Differs	18 A	22 A
Max output current (+12V4)Known for one	Unknown — not stated by the source	22 A
Max output current (+5V)Differs	17 A	28 A
Max output current (-12V)Differs	0.3 A	0.5 A
EfficiencyDiffers	92.9%	93%
Ports & interfaces4 differ
Number of SATA power connectorsDiffers	5	9
Peripheral (Molex) power connectors (4-pin)Differs	4	6
PCI Express power connectors (6+2 pin)Differs	1	4
Cabling typeDiffers	Non-Modular	Semi-Modular
PCI Express power connectors (6-pin)Known for one	1	Unknown — not stated by the source
Performance1 differ
EPS versionKnown for one	Unknown — not stated by the source	2.92
Noise levelDiffers	14.6 dB	23.6 dB
Design1 differ
Fan speedDiffers	800	1390
Weight & dimensions1 differ
WeightDiffers	2.24 kg	2.66 kg
Packaging data1 differ
Package weightDiffers	2.65 kg	3.08 kg
Other features2 differ
Noise level (quiet mode, 50%)Differs	13.8 dB	13.7 dB
Noise level (full-load mode, 100%)Differs	14.6 dB	23.6 dB

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.