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Product comparison · 2 power supply units

Chieftec GPB-300S power supply unit vs Zalman ZM650-EBT power supply unit

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  • 27specifications compared
  • 21differ
  • 6identical
  • 23known for one product only

Key differences

  • Total power
    • 300 W
    • 650 W
  • AC input voltage
    • 200 - 240 V
    • 100 - 240 V
  • AC input frequency
    • 47 - 63 Hz
    • 50 - 60 Hz
  • Input current
    • 3 A
    • 10 A
  • Combined power (+3.3V)
    • 90 W
    • 120 W
  • Combined power (+12V)
    • 264 W
    • 650 W
  • Combined power (+5V)
    • 90 W
    • 120 W
  • Combined power (+5Vsb)
    • 12.5 W
    • 15 W

Side by side

Differences highlightedShow differences only
50 specifications
A

Chieftec

GPB-300S power supply unit

Model GPB-300S

View product
B

Zalman

ZM650-EBT power supply unit

Model ZM650-EBT

View product
Power13 differ
Total powerDiffers300 W650 W
AC input voltageDiffers200 - 240 V100 - 240 V
AC input frequencyDiffers47 - 63 Hz50 - 60 Hz
Input currentDiffers3 A10 A
Combined power (+3.3V)Differs90 W120 W
Combined power (+12V)Differs264 W650 W
Combined power (+5V)Differs90 W120 W
Combined power (+5Vsb)Differs12.5 W15 W
Max output current (+3.3V)Differs16 A22 A
Max output current (+12V)Known for one54.2 A
Max output current (+5V)Differs15 A22 A
Max output current (+5Vsb)Differs2.5 A3 A
EfficiencyDiffers85%92%
Power protection featuresDiffersOver voltage, Overload, Short circuit, Under voltageOver current, Over voltage, Overheating, Short circuit, Under voltage
Power factorKnown for one0.9
Power Factor Correction (PFC) typeKnown for oneActive
Max output current (+12V1)Known for one22 A
Ports & interfaces3 differ
Number of SATA power connectorsDiffers32
Peripheral (Molex) power connectors (4-pin)Differs36
Floppy disk drive connectorKnown for oneYes
PCI Express connectorKnown for oneYes
Cabling typeDiffersNon-ModularSemi-Modular
Motherboard power connectorKnown for one20+4 pin ATX
Performance1 differ
Power supply unit (PSU) form factorDiffersPS/2ATX
80 PLUS certificationKnown for one80 PLUS Gold
EPS versionKnown for one2.92
Design1 differ
Product colourDiffersSilverBlack
Cooling typeKnown for oneActive
Fan diameterKnown for one12 cm
Number of fansKnown for one1 fan(s)
Fan locationKnown for oneTop
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Storage temperature (T-T)Known for one-20 - 70 °C
Operating relative humidity (H-H)Known for one5 - 95%
Storage relative humidity (H-H)Known for one5 - 95%
Packaging contentidentical
Cables includedKnown for oneAC
Certificatesidentical
CertificationKnown for oneNRTL, FCC, CB, CE, TUV, KC, EAC
Compliance certificatesKnown for oneRoHS
Weight & dimensions3 differ
WidthDiffers140 mm150 mm
DepthDiffers150 mm160 mm
HeightDiffers87 mm86 mm
WeightKnown for one2.4 kg
Packaging dataidentical
Package typeKnown for oneBox
Other featuresidentical
Warranty cardKnown for oneYes

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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