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Product comparison · 2 power supply units

be quiet! Straight Power E9 CM vs Zalman ZM500-HP PLUS

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  • 39specifications compared
  • 18differ
  • 21identical
  • 28known for one product only

Key differences

  • Total power
    • 680 W
    • 500 W
  • Input current
    • 5 - 10 A
    • 8 A
  • Power factor
    • 0.99
    • 99
  • Combined power (+3.3V)
    • 160 W
    • 130 W
  • Combined power (+12V)
    • 660 W
    • 432 W
  • Combined power (+5V)
    • 160 W
    • 130 W
  • Efficiency
    • 93%
    • 88%
  • Number of SATA power connectors
    • 9
    • 2

Side by side

Differences highlightedShow differences only
67 specifications
A

be quiet!

Straight Power E9 CMView product
B

Zalman

ZM500-HP PLUSView product
Power9 differ
Total powerDiffers680 W500 W
Peak powerKnown for one750 W
Input currentDiffers5 - 10 A8 A
Maximum input current (@110V)Differs+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorDiffers0.9999
Combined power (+3.3V)Differs160 W130 W
Combined power (+12V)Differs660 W432 W
Combined power (+5V)Differs160 W130 W
Max output current (+12V)Known for one55 A
Max output current (+12V3)Known for one22 A
Max output current (+12V4)Known for one22 A
Max output current (+5V)Known for one28 A
EfficiencyDiffers93%88%
Hold timeKnown for one19 ms
Power protection featuresDiffersOver current, Over power, Over voltage, Overheating, Short circuit, Under voltageOver current, Over voltage, Overheating, Short circuit, Under voltage
Combined power (-12V)Known for one6 W
Combined power (+5Vsb)Known for one15 W
Ports & interfaces2 differ
Number of SATA power connectorsDiffers92
PCI Express power connectors (6+2 pin)Differs41
CPU P4 connector (4-pin)Known for one1
EPS power connector (8-pin)Known for oneYes
PCI Express power connectors (6-pin)Known for one1
Performance2 differ
80 PLUS certificationDiffers80 PLUS Gold80 PLUS Bronze
ATX versionDiffers2.312.3
EPS versionKnown for one2.92
Noise levelKnown for one23.6 dB
Bearing technologyKnown for oneFDB
Mean time between failures (MTBF)Known for one300000 h
Design1 differ
Fan diameterDiffers13.5 cm12 cm
Fan speedKnown for one1390
Fan locationKnown for oneSide
On/off switchKnown for oneYes
Operational conditions1 differ
Operating temperature (T-T)Differs0 - 40 °C10 - 40 °C
Storage temperature (T-T)Known for one-20 - 80 °C
Operating relative humidity (H-H)Known for one5 - 95%
Storage relative humidity (H-H)Known for one5 - 95%
Certificates1 differ
CertificationDiffersCE, CB, TÜV, Semko (S)CB, CEE, FCC
Weight & dimensions2 differ
DepthDiffers160 mm165 mm
WeightDiffers2.66 kg2.79 kg
Packaging dataidentical
Package weightKnown for one3.08 kg
ManualKnown for oneYes
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other featuresidentical
Noise level (silent mode, <30%)Known for one13.7 dB
Noise level (quiet mode, 50%)Known for one13.7 dB
Noise level (full-load mode, 100%)Known for one23.6 dB
Package dimensions (WxDxH)Known for one248 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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