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Black rectangular AC adapter with 4.5mm barrel connector and detachable power cable

myVolts

myVolts 45W 19.5V 4.5mm ac adapter

SKU CH-C00Y-Y1PFT

A 45W 19.5V AC adapter with a 4.5mm connector for Dell XPS, Inspiron, Vostro and Optiplex laptops

  • 45W output powers compatible Dell laptops reliably
  • 5V 2.31A DC matches original charger specifications
  • 5mm x 3.0mm barrel connector fits listed Dell models
  • 100-240V AC input works worldwide without a voltage converter
  • CE, FCC and RoHS certified for electrical safety

45W 19.5V Dell AC Adapter

This 45 watt AC adapter supplies 19.5 volts at 2.31 amps for compatible Dell laptops. It accepts 100 to 240 volt AC input at 50 to 60 hertz for worldwide use. The unit includes the adapter brick and a detachable AC power cable. It is built new and carries CE, FCC and RoHS safety certifications.

4.5mm x 3.0mm Barrel Connector

The connector inner diameter measures 4.5 millimetres by 3.0 millimetres, which is the single specification that determines fit. Verify that your Dell model uses this exact barrel size before ordering. The adapter matches original part numbers such as LA45NM140, HA45NM140, PA-20 and 332-1827. Polarity and voltage must also match the original charger.

Straightforward Replacement

Installation is a direct swap: unplug the old adapter, connect the barrel tip to the laptop and plug the AC cable into a wall outlet. No drivers or configuration are required. The most common issue is ordering the wrong barrel size, so confirm the 4.5mm measurement against the original charger or laptop port. Buyers who need a higher wattage unit or a different connector type should look elsewhere.

How it compares

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

Price $21.99
Cheaper than about 68% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

What does the 45W output actually deliver to a laptop?

The adapter supplies 19.5V at 2.31A, giving up to 45W of continuous DC power for charging and running compatible Dell models.

What connector standard does the 4.5mm × 3.0mm barrel plug follow?

It uses a 4.5mm outer diameter and 3.0mm inner diameter barrel connector that matches the Dell part numbers listed, including LA45NM140 and HA45NM140.

What physical items are included for mounting or connection?

The package contains one AC adapter unit and one AC power cable for mains connection.

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