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Black rectangular AC adapter with 7.4 mm x 5.0 mm barrel tip and detachable power cord

AddOn

AddOn 331-7957 180W 19.5V 7.4x5.0mm AC Adapter

SKU CH-H900-YZK08

180W AC adapter with 7.4x5.0mm tip supplies 19.5V at 9.23A for compatible Dell laptops

  • Product typeAC Adapters
  • Delivers 180W at 19.5V for demanding Dell laptops
  • 4 mm x 5.0 mm tip matches Dell 331-7957 port
  • Supplies 9.23A continuous current for stable operation
  • Includes power cord for immediate desktop setup

Dell 331-7957 compatible 180 W adapter

This 180 W AC adapter delivers 19.5 V at 9.23 A and uses a 7.4 mm x 5.0 mm tip. It is built for Dell laptops that require the original 331-7957 part and ships in new condition.

Includes power cord for immediate use

The bundle supplies a mains cable so the unit can be plugged straight into a wall socket. Buyers who need a different tip size or a lower-wattage unit for ultraportable models will need a separate adapter.

How it compares

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

Price $90.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameAddOn
Product typeAC Adapters

Questions about this item

Does the 7.4 mm x 5.0 mm tip wear out and need replacement?

The barrel tip is a solid metal connector; it does not contain moving parts and normally lasts the life of the adapter unless physically damaged.

What limits continuous 180 W output — heat or the 19.5 V 9.23 A rating?

The 19.5 V 9.23 A rating defines the maximum continuous output; sustained loads at 180 W are limited by that electrical ceiling and the adapter's internal thermal design.

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