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Product comparison · 2 power supply units

Zalman ZM400-ST power supply unit vs Zalman ZM500-HP PLUS

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  • 39specifications compared
  • 15differ
  • 24identical
  • 15known for one product only

Key differences

  • Total power
    • 400 W
    • 500 W
  • Input current
    • 5 - 8 A
    • 8 A
  • Combined power (+3.3V)
    • 120 W
    • 130 W
  • Combined power (+12V)
    • 384 W
    • 432 W
  • Combined power (+5V)
    • 120 W
    • 130 W
  • Combined power (-12V)
    • 3.6 W
    • 6 W
  • Max output current (-12V)
    • 0.3 A
    • 0.5 A
  • Efficiency
    • 86%
    • 88%

Side by side

Differences highlightedShow differences only
54 specifications
A

Zalman

ZM400-ST power supply unit

Model ZM400-ST

View product
B

Zalman

ZM500-HP PLUSView product
Power9 differ
Total powerDiffers400 W500 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers5 - 8 A8 A
Maximum input current (@110V)+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factor9999
Power Factor Correction (PFC) typeActiveActive
Combined power (+3.3V)Differs120 W130 W
Combined power (+12V)Differs384 W432 W
Combined power (+5V)Differs120 W130 W
Combined power (-12V)Differs3.6 W6 W
Combined power (+5Vsb)15 W15 W
Max output current (+3.3V)24 A24 A
Max output current (+12V1)Known for one18 A
Max output current (+12V2)Known for one18 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)3 A3 A
EfficiencyDiffers86%88%
Power protection featuresDiffersOver current, Over power, Over voltage, Short circuitOver current, Over voltage, Overheating, Short circuit, Under voltage
Max output current (+12V)Known for one20 A
Max output current (+5V)Known for one15 A
Ports & interfaces2 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers42
Peripheral (Molex) power connectors (4-pin)Known for one6
EPS power connector (8-pin)YesYes
PCI Express power connectors (6-pin)11
PCI Express power connectors (6+2 pin)Known for one1
CPU power connector (4+4 pin)Known for oneYes
Floppy drive power connector11
Cabling typeDiffersNon-ModularSemi-Modular
CPU P4 connector (4-pin)Known for one1
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationDiffers80 PLUS80 PLUS Bronze
ATX version2.32.3
Designidentical
Product colourBlackBlack
Cooling typeActiveActive
Fan diameter12 cm12 cm
Number of fans1 fan(s)1 fan(s)
Fan locationKnown for oneSide
On/off switchKnown for oneYes
Operational conditions2 differ
Operating temperature (T-T)10 - 40 °C10 - 40 °C
Storage temperature (T-T)Differs-40 - 70 °C-20 - 80 °C
Operating relative humidity (H-H)Differs20 - 85%5 - 95%
Storage relative humidity (H-H)5 - 95%5 - 95%
Certificatesidentical
Compliance certificatesRoHSRoHS
CertificationKnown for oneCB, CEE, FCC
Weight & dimensions1 differ
Width150 mm150 mm
DepthDiffers140 mm165 mm
Height86 mm86 mm
WeightKnown for one2.79 kg
Packaging dataidentical
ManualKnown for oneYes
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other featuresidentical
Dimensions (WxDxH)Known for one150 x 140 x 86 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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