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Product comparison · 2 power supply units

Chieftec APS-550SB power supply unit vs Zalman ZM400-LE power supply unit

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  • 26specifications compared
  • 13differ
  • 13identical
  • 24known for one product only

Key differences

  • Total power
    • 550 W
    • 400 W
  • AC input voltage
    • 115 - 230 V
    • 115 V
  • AC input frequency
    • 50 - 60 Hz
    • 47 - 63 Hz
  • Max output current (+3.3V)
    • 22 A
    • 16 A
  • Max output current (+5V)
    • 22 A
    • 15 A
  • Max output current (+5Vsb)
    • 2.5 A
    • 2 A
  • Motherboard power connector
    • 24-pin ATX
    • 20+4 pin ATX
  • Product colour
    • Silver
    • Black

Side by side

Differences highlightedShow differences only
50 specifications
A

Chieftec

APS-550SB power supply unit

Model APS-550SB

View product
B

Zalman

ZM400-LE power supply unit

Model ZM400-LE

View product
Power8 differ
Total powerDiffers550 W400 W
AC input voltageDiffers115 - 230 V115 V
AC input frequencyDiffers50 - 60 Hz47 - 63 Hz
Input currentKnown for one8 A
Maximum input current (@110V)Differs+12V,+3.3V,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.5
Combined power (+3.3V)120 W120 W
Combined power (+12V)Known for one300 W
Combined power (+5V)120 W120 W
Combined power (-12V)Known for one3.6 W
Combined power (+5Vsb)Known for one10 W
Max output current (+3.3V)Differs22 A16 A
Max output current (+12V1)Known for one17 A
Max output current (+12V2)Known for one14 A
Max output current (+5V)Differs22 A15 A
Max output current (-12V)0.3 A0.3 A
Max output current (+5Vsb)Differs2.5 A2 A
EfficiencyKnown for one81%
Power protection featuresDiffersOver current, Over voltage, Overload, Short circuit, Under voltageOver power, Over voltage, Short circuit, Under voltage
Power Factor Correction (PFC) typeKnown for oneActive
Ports & interfaces1 differ
Motherboard power connectorDiffers24-pin ATX20+4 pin ATX
Number of SATA power connectorsKnown for one4
Peripheral (Molex) power connectors (4-pin)33
PCI Express power connectors (6-pin)Known for one2
CPU power connector (4+4 pin)Known for oneYes
Floppy drive power connector11
Cabling typeNon-ModularNon-Modular
EPS power connector (8-pin)Known for oneYes
PCI Express power connectors (6+2 pin)Known for one1
ATX Power connector (24-pin)Known for oneYes
Performanceidentical
PurposePCPC
Power supply unit (PSU) form factorATXATX
ATX version2.32.3
80 PLUS certificationKnown for one80 PLUS Bronze
Mean time between failures (MTBF)Known for one100000 h
Design2 differ
Product colourDiffersSilverBlack
Cooling typeActiveActive
Fan diameterDiffers14 cm12 cm
Number of fans1 fan(s)1 fan(s)
Fan locationKnown for oneSide
On/off switchYesYes
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating relative humidity (H-H)Known for one5 - 85%
Storage relative humidity (H-H)Known for one5 - 95%
Certificatesidentical
CertificationKnown for oneErP Lot 6
Weight & dimensions2 differ
Width150 mm150 mm
DepthDiffers87 mm140 mm
HeightDiffers155 mm86 mm
WeightKnown for one1.7 kg

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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