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Compact black AC adapter with 4.0×1.35 mm barrel connector

myVolts

myVolts 19V 2.37A 45W AC Adapter 4.0×1.35mm for Asus Zenbook Prime UX21A UX31A UX32A UX42A

SKU CH-MKDM-SP0J1

Delivers 19 V at 2.37 A (45 W) through a 4.0 × 1.35 mm tip for compatible Asus Zenbook and VivoBook models

  • Delivers 45W at 19V 2.37A for reliable laptop charging
  • 0×1.35mm connector fits Zenbook Prime UX21A UX31A UX32A UX42A
  • Wide 100-240V 50/60Hz input works worldwide
  • Compatible with VivoBook X201E F201E X202E Q200E and X553M UX305
  • Brand-new unit backed by one-year warranty

Compatible AC Adapter for Asus Zenbook Prime

This 45 W AC adapter supplies 19 V at 2.37 A through a 4.0 × 1.35 mm barrel connector. It matches the original charger specification for Asus Zenbook Prime UX21A UX31A UX32A UX42A models. The unit accepts 100–240 V input at 50/60 Hz for worldwide use. It is intended for owners of those ultrabooks who need a direct replacement power supply.

Replaces Lost or Failing Original Charger

The adapter replaces the factory brick when it is lost, damaged or no longer holds a stable voltage. It also covers compatible VivoBook X201E F201E X202E Q200E and UX302L UX305 X553M units that share the same connector and power rating. The upgrade is worth it when the original cable frays or the tip no longer seats securely. No higher-wattage option is offered by this model.

Steady Output During Continuous Use

Under sustained load the adapter maintains its rated 19 V 2.37 A output without exceeding the 45 W limit. The wide-range input handles mains fluctuations between 100 V and 240 V without interruption. Thermal protection prevents shutdown during extended charging sessions. The fixed cable length and connector geometry are unchanged from the original design.

Highlights

  • Delivers 45W at 19V 2.37A for reliable laptop charging
  • 0×1.35mm connector fits Zenbook Prime UX21A UX31A UX32A UX42A
  • Wide 100-240V 50/60Hz input works worldwide
  • Compatible with VivoBook X201E F201E X202E Q200E and X553M UX305
  • Brand-new unit backed by one-year warranty

Specifications

No published specifications for this item yet.

Questions about this item

Will the 4.0 mm outer by 1.35 mm inner barrel connector fit my Zenbook Prime UX31A charging port?

Yes, the DC connector is specified as 4.0 mm external diameter and 1.35 mm internal diameter, which matches the charging port on the listed Zenbook Prime models.

What is the correct way to connect the adapter so the 19 V 2.37 A output reaches the laptop?

Plug the AC cord into a 100-240 V 50/60 Hz mains socket first, then insert the 4.0×1.35 mm barrel tip firmly into the laptop's DC-in jack until it seats.

How long before the 45 W adapter's cable or barrel tip typically needs replacement?

With normal use the cable and 4.0×1.35 mm tip last several years; replace them if the sheath frays, the tip becomes loose in the port, or output voltage drops below 19 V.

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