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Product comparison · 2 power adapters & inverters

Ewent EW3971 power adapter/inverter Indoor vs Ewent EW3974 power adapter/inverter Indoor

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  • 17specifications compared
  • 5differ
  • 12identical
  • 5known for one product only

Key differences

  • Purpose
    • Universal
    • Laptop
  • Width
    • 134 mm
    • 130 mm
  • Depth
    • 67 mm
    • 57 mm
  • Height
    • 17.5 mm
    • 30 mm
  • Weight
    • 277 g
    • 320 g

Side by side

Differences highlightedShow differences only
22 specifications
A

Ewent

EW3971 power adapter/inverter Indoor

Model EW3971

View product
B

Ewent

EW3974 power adapter/inverter Indoor

Model EW3974

View product
Features1 differ
PurposeDiffersUniversalLaptop
Power supply typeIndoorIndoor
Power current typeAC-to-DCAC-to-DC
Input voltage100-240 V100-240 V
Input frequency50/60 Hz50/60 Hz
Output power90 W90 W
Output voltage9.5 V9.5 V
Efficiency86%86%
Supplementary power connectors88
Detachable power connectorsYesYes
Power protection featuresOver current, Over voltage, Overheating, Short circuitOver current, Over voltage, Overheating, Short circuit
USB ports quantityKnown for one1
Designidentical
Product colourBlackBlack
Certificatesidentical
CertificationCE, RoHS, FCCCE, RoHS, FCC
Weight & dimensions4 differ
WidthDiffers134 mm130 mm
DepthDiffers67 mm57 mm
HeightDiffers17.5 mm30 mm
WeightDiffers277 g320 g
Packaging dataidentical
AC adapter includedKnown for oneYes
Packaging contentidentical
Cables includedKnown for oneAC
Logistics dataidentical
Harmonized System (HS) codeKnown for one85044090
Performanceidentical
USB versionKnown for one2.0

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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