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Product comparison · 2 power supply units

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

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  • 55specifications compared
  • 22differ
  • 33identical
  • 3known for one product only

Key differences

  • Total power
    • 400 W
    • 680 W
  • Peak power
    • 450 W
    • 750 W
  • Input current
    • 3 - 6 A
    • 5 - 10 A
  • Combined power (+3.3V)
    • 120 W
    • 160 W
  • Combined power (+12V)
    • 384 W
    • 660 W
  • Combined power (+5V)
    • 120 W
    • 160 W
  • Max output current (+12V)
    • 32 A
    • 55 A
  • Max output current (+12V3)
    • 18 A
    • 22 A

Side by side

Differences highlightedShow differences only
58 specifications
A

be quiet!

Straight Power E9View product
B

be quiet!

Straight Power E9 CMView product
Power12 differ
Total powerDiffers400 W680 W
Peak powerDiffers450 W750 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers3 - 6 A5 - 10 A
Maximum input current (@110V)Differs+12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Power factor0.990.99
Power Factor Correction (PFC) typeActiveActive
Combined power (+3.3V)Differs120 W160 W
Combined power (+12V)Differs384 W660 W
Combined power (+5V)Differs120 W160 W
Max output current (+3.3V)24 A24 A
Max output current (+12V)Differs32 A55 A
Max output current (+12V1)18 A18 A
Max output current (+12V2)18 A18 A
Max output current (+12V3)Differs18 A22 A
Max output current (+12V4)Known for one22 A
Max output current (+5V)Differs17 A28 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)3 A3 A
EfficiencyDiffers92.9%93%
Hold time19 ms19 ms
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltageOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces4 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers59
Peripheral (Molex) power connectors (4-pin)Differs46
PCI Express power connectors (6+2 pin)Differs14
CPU P4 connector (4-pin)11
CPU power connector (4+4 pin)YesYes
Floppy drive power connector11
Cabling typeDiffersNon-ModularSemi-Modular
PCI Express power connectors (6-pin)Known for one1
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Gold80 PLUS Gold
ATX version2.312.31
EPS versionKnown for one2.92
Noise levelDiffers14.6 dB23.6 dB
Bearing technologyFDBFDB
Mean time between failures (MTBF)300000 h300000 h
Design1 differ
Product colourBlackBlack
Cooling typeActiveActive
Fan diameter13.5 cm13.5 cm
Number of fans1 fan(s)1 fan(s)
Fan speedDiffers8001390
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Certificatesidentical
Compliance certificatesRoHSRoHS
CertificationCE, CB, TÜV, Semko (S)CE, CB, TÜV, Semko (S)
Weight & dimensions1 differ
Width150 mm150 mm
Depth160 mm160 mm
Height86 mm86 mm
WeightDiffers2.24 kg2.66 kg
Packaging data1 differ
Package weightDiffers2.65 kg3.08 kg
Technical detailsidentical
Sustainability certificatesENERGY STARENERGY STAR
Other features2 differ
Noise level (silent mode, <30%)13.7 dB13.7 dB
Noise level (quiet mode, 50%)Differs13.8 dB13.7 dB
Noise level (full-load mode, 100%)Differs14.6 dB23.6 dB
Package dimensions (WxDxH)248 x 328 x 102 mm248 x 328 x 102 mm

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.

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