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Compact black USB-C power adapter with detachable three-prong mains cord

myVolts

myVolts 45W USB-C Laptop AC Adapter

SKU CH-7J3M-S74NC

A 45W USB-C charger with 15V, 12V, 9V and 5V outputs for compatible Acer Chromebook Spin, CB, CP and Swift models

  • 45W USB-C power charges compatible Acer Chromebooks fast
  • 100-240V input works worldwide without a voltage converter
  • Four output profiles 5V 9V 12V 15V match device needs
  • Compact design with 3-prong cord fits in any bag
  • Replaces multiple OEM part numbers including PA-1450-78 ADP-45EW

What it is

This myVolts 45W USB-C AC adapter replaces the original charger for a wide range of Acer Chromebook Spin, CB, CP and Swift models. It accepts 100-240V input at 56-60Hz and connects via a USB Type-C plug with a three-prong AC cord included.

Thermals, noise and power draw

The adapter delivers four fixed output profiles: 5V at 3A, 9V at 3A, 12V at 3A and 15V at 3A for a maximum of 45W. It has no moving parts, so it runs silently and its thermal load stays low during normal charging of compatible Chromebooks.

Sustained load behaviour

Under continuous full-load operation the unit maintains its rated 45W output through the 15V/3A rail without throttling. The compact enclosure relies on passive convection, so surface temperature rises steadily but remains within safe limits for desktop use.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $31.99
Typical for this category: the median of 27,790 items is $30.99.

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 45W USB-C adapter and what step do people often miss?

Connect the three-prong AC cord to the brick, then plug the USB-C connector into the laptop; the step often missed is seating the AC cord fully into the adapter before connecting to mains.

What maintenance or replacement will this adapter need over time?

The detachable three-prong AC cord and the USB-C cable are the only serviceable parts; replace either if the connectors become loose or the insulation shows wear.

What limit appears first when the adapter runs at full 45W output for long periods?

Continuous 45W delivery at 15V/3A will hit the thermal limit of the compact enclosure first, causing the unit to throttle or shut down until it cools.

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