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Slim black rectangular power brick with 7.4 mm barrel connector and detachable AC cord

DELL

DELL TXR1N Slim AC Adapter 180 W 7.4 mm Barrel Tip 100 to 240 VAC

SKU CH-MM9D-R0Q1S

Slim 180 W laptop power adapter with a 7.4 mm barrel tip and 100 to 240 VAC input

  • Battery TypeLithium-Ion
  • 180 W output powers demanding laptops
  • Slim profile fits tight bags and docks
  • 100–240 VAC input works worldwide
  • 4 mm barrel tip matches Dell port
  • 5 V at 9.23 A delivers stable charge

Dell TXR1N Slim AC Adapter 180 W

The Dell TXR1N Slim AC Adapter delivers 180 Watts of power through a 7.4 mm barrel tip. It accepts 100 to 240 VAC at 50/60 Hz input and provides a 19.5 V, 9.23 A output. This new replacement unit matches the Chicony HA180PM210 and part number 0TXR1N.

Who this suits and who it does not

This adapter suits owners of compatible Dell laptops that require a 180 W supply with a 7.4 mm barrel connector. It is not for users whose devices need a different wattage, a different tip size, or a USB-C power connection. Buyers should verify their original charger specifications before purchasing.

Deciding specification

The 7.4 mm barrel tip and 180 W rating are the critical specifications that determine fit and function. If the laptop requires a different connector diameter or a lower or higher power rating, this adapter will not work. Check the original power brick for the exact tip size and wattage.

Highlights

  • 180 W output powers demanding laptops
  • Slim profile fits tight bags and docks
  • 100–240 VAC input works worldwide
  • 4 mm barrel tip matches Dell port
  • 5 V at 9.23 A delivers stable charge

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I connect the 7.4 mm barrel tip, and which step do people get wrong?

Plug the 7.4 mm barrel tip firmly into the laptop's power port until it clicks; the step often missed is verifying the laptop shows 19.5 V charging before assuming it is seated.

What maintenance or replacement will the 180 W adapter need later?

The cable and 7.4 mm barrel tip wear first; replace the unit if the tip becomes loose, the cable frays near the strain relief, or output drops below 19.5 V at 9.23 A.

What limit appears first when the adapter runs at full 180 W load for long periods?

Sustained 180 W output at 19.5 V and 9.23 A causes the brick to reach its thermal ceiling first; the case temperature rises until internal protection throttles or shuts off power.

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