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Black rectangular AC adapter with three-pin input plug and barrel output connector

DELL

DELL CM889 90W AC Adapter 19.5V 4.62A 3-Pin

SKU CH-Z93A-3TQ88

A 90 W AC adapter supplying 19.5 V at 4.62 A for Dell Inspiron, Latitude, Precision and XPS notebooks plus D/Port and D-Series docks

  • ColorMulticolor
  • Battery TypeLithium-Ion
  • Delivers reliable 90 W power for demanding notebooks and workstations
  • Accepts worldwide 110 V to 220 V input for travel flexibility
  • Compact 8.3 x 4.3 x 1.6 inch design fits easily in a bag
  • Three-pin connector ensures secure attachment to compatible Dell systems
  • Supports extensive Inspiron, Latitude, Precision and XPS model ranges

Dell CM889 90W AC Adapter

This new Dell CM889 adapter supplies 90W at 19.5V DC and 4.62A to compatible notebooks, workstations, docking stations and port replicators. It accepts worldwide input from 110V AC to 220V AC. The unit measures 8.3in by 4.3in by 1.6in. It is built for Dell systems requiring this specific power profile.

19.5V DC output with 3-pin connector

The critical specification is the 19.5V DC output delivered through a 3-pin connector at up to 4.62A. Only devices designed for this exact voltage and connector will operate correctly. Check the original adapter label on your Dell machine before purchasing. Using a different voltage or pin layout can cause damage.

Thermals noise and power draw

The adapter draws up to 90W from the mains and converts it to 90W DC output with typical efficiency for a brick-style supply. It runs passively with no fan, so operation is silent. The casing warms under sustained load but stays within normal limits for a 90W class unit. No active cooling is required.

Highlights

  • Delivers reliable 90 W power for demanding notebooks and workstations
  • Accepts worldwide 110 V to 220 V input for travel flexibility
  • Compact 8.3 x 4.3 x 1.6 inch design fits easily in a bag
  • Three-pin connector ensures secure attachment to compatible Dell systems
  • Supports extensive Inspiron, Latitude, Precision and XPS model ranges

Specifications

BrandDELL
ColorMulticolor
Battery TypeLithium-Ion

Questions about this item

How much power does the 90 W rating actually deliver to a notebook?

The adapter supplies up to 90 W at 19.5 V DC and 4.62 A, matching the input requirements of the listed Dell notebooks, workstations and docking stations.

What does the 3-pin connector limit in daily use?

The three-pin barrel plug fits the power jack on compatible Dell Inspiron, Latitude, Precision and XPS models as well as D/Port replicators and D-Series docking stations.

Will the 8.3 by 4.3 by 1.6 inch brick fit in a standard laptop bag pocket?

The adapter measures 8.3 inches high, 4.3 inches wide and 1.6 inches deep, so it occupies a modest rectangular space in most accessory compartments.

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