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Product comparison · 2 power supply units

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

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  • 40specifications compared
  • 20differ
  • 20identical
  • 25known for one product only

Key differences

  • Total power
    • 400 W
    • 500 W
  • Input current
    • 3 - 6 A
    • 8 A
  • Power factor
    • 0.99
    • 99
  • Combined power (+3.3V)
    • 120 W
    • 130 W
  • Combined power (+12V)
    • 384 W
    • 432 W
  • Combined power (+5V)
    • 120 W
    • 130 W
  • Max output current (-12V)
    • 0.3 A
    • 0.5 A
  • Efficiency
    • 92.9%
    • 88%

Side by side

Differences highlightedShow differences only
65 specifications
A

be quiet!

Straight Power E9View product
B

Zalman

ZM500-HP PLUSView product
Power10 differ
Total powerDiffers400 W500 W
Peak powerKnown for one450 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers3 - 6 A8 A
Maximum input current (@110V)Differs+12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorDiffers0.9999
Power Factor Correction (PFC) typeActiveActive
Combined power (+3.3V)Differs120 W130 W
Combined power (+12V)Differs384 W432 W
Combined power (+5V)Differs120 W130 W
Max output current (+3.3V)24 A24 A
Max output current (+12V)Known for one32 A
Max output current (+12V1)18 A18 A
Max output current (+12V2)18 A18 A
Max output current (+12V3)Known for one18 A
Max output current (+5V)Known for one17 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)3 A3 A
EfficiencyDiffers92.9%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 & interfaces3 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers52
Peripheral (Molex) power connectors (4-pin)Differs46
PCI Express power connectors (6-pin)11
PCI Express power connectors (6+2 pin)11
CPU P4 connector (4-pin)Known for one1
CPU power connector (4+4 pin)YesYes
Floppy drive power connector11
Cabling typeDiffersNon-ModularSemi-Modular
EPS power connector (8-pin)Known for oneYes
Performance2 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationDiffers80 PLUS Gold80 PLUS Bronze
ATX versionDiffers2.312.3
Noise levelKnown for one14.6 dB
Bearing technologyKnown for oneFDB
Mean time between failures (MTBF)Known for one300000 h
Design1 differ
Product colourBlackBlack
Cooling typeActiveActive
Fan diameterDiffers13.5 cm12 cm
Number of fans1 fan(s)1 fan(s)
Fan speedKnown for one800
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
Compliance certificatesRoHSRoHS
CertificationDiffersCE, CB, TÜV, Semko (S)CB, CEE, FCC
Weight & dimensions2 differ
Width150 mm150 mm
DepthDiffers160 mm165 mm
Height86 mm86 mm
WeightDiffers2.24 kg2.79 kg
Packaging dataidentical
Package weightKnown for one2.65 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 one13.8 dB
Noise level (full-load mode, 100%)Known for one14.6 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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