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Product comparison · 2 power adapters & inverters

Lenovo 4X21U28814 power adapter/inverter Indoor vs Lenovo 4X21U28840 power adapter/inverter Indoor

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  • 20specifications compared
  • 8differ
  • 12identical
  • 4known for one product only

Key differences

  • Input voltage
    • 115 - 230 V
    • 100 - 240 V
  • Input frequency
    • 50/60 Hz
    • 50 - 60 Hz
  • Output power
    • 140 W
    • 180 W
  • Output voltage
    • 28 V
    • 36 V
  • Width
    • 120 mm
    • 147.5 mm
  • Depth
    • 62.5 mm
    • 69 mm
  • Weight
    • 500 g
    • 510 g

Side by side

Differences highlightedShow differences only
24 specifications
A

Lenovo

4X21U28814 power adapter/inverter Indoor

Model 4X21U28814

View product
B

Lenovo

4X21U28840 power adapter/inverter Indoor

Model 4X21U28840

View product
Features5 differ
PurposeLaptopLaptop
Power supply typeIndoorIndoor
Input voltageDiffers115 - 230 V100 - 240 V
Input frequencyDiffers50/60 Hz50 - 60 Hz
Output powerDiffers140 W180 W
Output voltageDiffers28 V36 V
Output current5 A5 A
Brand compatibilityLenovoLenovo
CompatibilityDiffersThinkPad P16v Gen 3 (Intel) ThinkPad T1g Gen 8ThinkPad
Designidentical
Product colourBlackBlack
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Operating relative humidity (H-H)8 - 80%8 - 80%
Certificatesidentical
CertificationUL/CB/CE EMC/CE Doc/PSE/IRAM/NOM/DOE,ErP,CoC/Nrcan/FCC and ICES/Mexico MEPS/PSB/CCC/CECP/KC,MSIP/Korea MEPS/RCM/Australia safety/NZ Doc/BSMI/EAC/Serbia/Ukraine/SII/NRCS/SABS/SIRIM/ISC/SONCAP/KEBS/STZ/INSM/KUCAS/BIS/Morocco/SEC/TISIUL/CB/CE EMC/CE Doc/PSE/IRAM/NOM/DOE,ErP,CoC/Nrcan/FCC and ICES/Mexico MEPS/PSB/CCC/CECP/KC,MSIP/Korea MEPS/RCM/Australia safety/NZ Doc/BSMI/EAC/Serbia/Ukraine/SII/NRCS/SABS/SIRIM/ISC/SONCAP/KEBS/STZ/INSM/KUCAS/BIS/Morocco/SEC/TISI
Weight & dimensions3 differ
Cable length1 m1 m
WidthDiffers120 mm147.5 mm
DepthDiffers62.5 mm69 mm
Height22 mm22 mm
WeightDiffers500 g510 g
Packaging dataidentical
Package widthKnown for one240 mm
Package depthKnown for one145 mm
Package heightKnown for one52 mm
Package weightKnown for one630 g
Package typeBoxBox
Packaging contentidentical
Quantity per pack1 pc(s)1 pc(s)

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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