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A 4.0 by 1.35 mm barrel plug connects to a short cable ending in a USB-C female port

Ruth's sister

Ruth's sister DC Power Adapter 4.0x1.35mm Male to USB-C Female for Asus Zenbook UX21A UX31A UX32A

SKU CH-TJ0Y-S3WCJ

Converts a 4.0x1.35 mm barrel plug to USB-C for Asus Zenbook UX21A, UX31A and UX32A models

  • Charges Zenbook UX21A via USB-C
  • Fits UX31A with 4.0×1.35 mm plug
  • Powers UX32A through Type-C port
  • New adapter with cable cord included

DC Adapter for Asus Zenbook UX21A UX31A UX32A

This DC power adapter converts the proprietary 4.0x1.35mm barrel connector found on select Asus Zenbook models to a USB-C female port. It allows owners of the UX21A, UX31A or UX32A to use a standard USB-C power source instead of the original charger. The cable cord provides a direct link between the laptop's DC input and a USB-C cable. It is built for users who need a replacement or spare connection for these specific ultrabooks.

4.0x1.35mm Male Plug to USB-C Female Jack

The male barrel plug fits the 4.0 mm by 1.35 mm DC input on the listed Zenbooks while the female USB-C jack accepts any compliant USB-C power cable. This connector arrangement removes the need for a dedicated barrel-tip charger when travelling or at a desk. Build quality centres on a moulded plug housing and strain-relieved cord that resists daily flexing at the jack. Users requiring power delivery negotiation beyond simple voltage pass-through or those with laptops using a different barrel size cannot use this adapter.

Highlights

  • Charges Zenbook UX21A via USB-C
  • Fits UX31A with 4.0×1.35 mm plug
  • Powers UX32A through Type-C port
  • New adapter with cable cord included

Specifications

No published specifications for this item yet.

Questions about this item

What is the 4.0x1.35mm male plug and what power standard does it support?

The 4.0x1.35mm male plug connects to the laptop's DC-in port, delivering power from a USB-C source to compatible Asus Zenbook models.

What physical clearance does the adapter need to fit the Zenbook UX21A, UX31A or UX32A?

The adapter uses a short cable cord and a compact USB-C female jack, so it fits within the slim chassis cut-out of the listed Zenbook models.

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