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Product comparison · 2 power supply units

Zalman ZM550-XG power supply unit vs Zalman ZM750-XG power supply unit

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  • 43specifications compared
  • 12differ
  • 31identical
  • 6known for one product only

Key differences

  • Total power
    • 550 W
    • 750 W
  • Input current
    • 7 A
    • 9.5 A
  • Maximum input current (@110V)
    • +12V,+3.3V,+5V,+5Vsb,-12V
    • +12V,+3.3V,+5V,+5Vsb,-5Vsb
  • Combined power (+3.3V)
    • 140 W
    • 150 W
  • Combined power (+12V)
    • 540 W
    • 744 W
  • Combined power (+5V)
    • 140 W
    • 150 W
  • Combined power (+5Vsb)
    • 12.5 W
    • 17.5 W
  • Max output current (+12V)
    • 45 A
    • 62 A

Side by side

Differences highlightedShow differences only
49 specifications
A

Zalman

ZM550-XG power supply unit

Model ZM550-XG

View product
B

Zalman

ZM750-XG power supply unit

Model ZM750-XG

View product
Power10 differ
Total powerDiffers550 W750 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers7 A9.5 A
Maximum input current (@110V)Differs+12V,+3.3V,+5V,+5Vsb,-12V+12V,+3.3V,+5V,+5Vsb,-5Vsb
Power factor9999
Power Factor Correction (PFC) typeKnown for oneActive
Combined power (+3.3V)Differs140 W150 W
Combined power (+12V)Differs540 W744 W
Combined power (+5V)Differs140 W150 W
Combined power (-12V)3.6 W3.6 W
Combined power (+5Vsb)Differs12.5 W17.5 W
Max output current (+3.3V)22 A22 A
Max output current (+12V)Differs45 A62 A
Max output current (+5V)Differs18 A25 A
Max output current (-12V)0.3 A0.3 A
Max output current (+5Vsb)Differs12.5 A3.5 A
Efficiency92%92%
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltageOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Ports & interfaces1 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectors22
Peripheral (Molex) power connectors (4-pin)Differs67
PCI Express power connectors (6+2 pin)44
CPU power connector (4+4 pin)YesYes
ATX power connector (20+4 pin)Known for oneYes
Floppy disk drive connectorKnown for oneYes
Floppy drive power connector11
PCI Express connectorKnown for oneYes
Cabling typeSemi-ModularSemi-Modular
Performanceidentical
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Gold80 PLUS Gold
Mean time between failures (MTBF)100000 h100000 h
Design1 differ
Product colourDiffersYellowBlack, Yellow
Cooling typeActiveActive
Fan diameter13.9 cm13.9 cm
Number of fans1 fan(s)1 fan(s)
Fan locationSideSide
LED indicatorsKnown for oneNo
On/off switchYesYes
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Storage temperature (T-T)-20 - 80 °C-20 - 80 °C
Operating relative humidity (H-H)5 - 95%5 - 95%
Storage relative humidity (H-H)5 - 95%5 - 95%
Weight & dimensionsidentical
Width150 mm150 mm
Depth180 mm180 mm
Height86 mm86 mm
Packaging dataidentical
ManualYesYes
Other featuresidentical
Dimensions (WxDxH)Known for one150 x 180 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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