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Black rectangular AC adapter brick with detachable power cord and 7.4 mm barrel tip

DELL

DELL CM889-AFTERMARKET 90W 19.5V AC Adapter

SKU CH-E4X0-DSR3K

90W 19.5V AC adapter with 7.4mm tip powers compatible Dell Inspiron laptops and includes a power cord

  • Power adapter voltage19.5 V
  • Power adapter current4.62A
  • Power adapter wattage90 W
  • Product typeAC Adapter
  • Key featuresGenuine Dell PA-10 AC Adapter in Bulk Packaging
  • 90 W output powers demanding Dell Inspiron models
  • 5 V 4.62 A matches original PA-10 specifications
  • 100-240 V input works worldwide without a converter
  • 4 mm barrel tip fits listed Inspiron sockets
  • Includes power cord for immediate use

What this adapter powers

This 90 W AC adapter delivers 19.5 V at 4.62 A to compatible Dell Inspiron laptops. It includes the 7.4 mm x 5.0 mm barrel tip and a detachable mains cord. The unit accepts 100–240 V input at 50–60 Hz for worldwide use.

Who it suits and who it does not

Owners of the listed Inspiron models from the 11z through 17R series can use this charger as a direct replacement. Buyers whose laptops need a different output voltage, a higher wattage rating or a USB-C power input should look elsewhere.

The specification that decides fit

The 7.4 mm x 5.0 mm tip size is the single detail that determines whether this adapter will connect to your laptop. Verify the connector on your original charger matches before ordering.

How it compares

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

Price $17.99
Cheaper than about 76% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Model nameCM889-AFTERMARKET
Product typeAC Adapter
Power
Power adapter voltage19.5 V
Power adapter current4.62A
Power adapter wattage90 W

Questions about this item

What does the 7.4 mm x 5.0 mm barrel tip limit in practice?

The 7.4 mm x 5.0 mm barrel tip fits Dell Inspiron models listed such as the 1525, 1545, 1564, 1720 and 1750; it will not connect to laptops that use a different tip size or USB-C charging.

What physical space does the brick and cord need on a desk or in a bag?

The adapter brick measures roughly 120 mm long, 50 mm wide and 30 mm thick with a 1 m DC cable and a standard IEC C5 mains lead, so it fits in a typical laptop sleeve pocket.

How is the adapter connected, and which step do people often skip?

Plug the IEC C5 mains cord into the brick, insert the 7.4 mm barrel tip firmly until it clicks into the laptop, then switch on the wall socket; users often forget to seat the tip fully, causing intermittent charging.

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