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Black rectangular Dell 180W AC adapter with three-prong plug and six-foot cord

DELL

DELL 331-7957 180W 3-prong AC adapter

SKU CH-A5W9-3634V MPN 331-7957

A 180-watt AC adapter with 6-foot cord powers compatible Dell notebooks from 120 or 230-volt outlets

  • Battery typeLithium-Ion
  • Product colorMulticolor
  • Product weight2.55
  • Second adapter eliminates daily unplugging
  • 180 W output powers laptop and charges battery together
  • 5 V DC matches Dell notebook input requirement
  • 6 ft cord gives flexible outlet reach
  • Compact 1.5 × 3 × 6.1 in brick fits in bag

Replacement Power Adapter for Dell Notebooks

The Dell 331-7957 is a 180-watt AC adapter built to match the original power requirements of compatible Dell laptops. It accepts 120 V AC or 230 V AC input and delivers 19.5 V DC at up to 9.23 A. The unit is sold new and includes a 6-foot power cord for immediate use.

Single-Brick Design with Standard Three-Prong Plug

The adapter measures 1.5 inches high, 3 inches wide and 6.1 inches deep, weighing approximately 1.27 lb. Its integrated 3-prong inlet connects directly to a wall outlet or power strip without a separate bulky cable block. The 6-foot cord provides enough reach for desk or hotel-nightstand placement while keeping the brick on the floor.

Ready-to-Use Cord Eliminates Extra Purchases

The bundled 6-foot AC power cord means no separate cable hunt is required after unboxing. The adapter supports simultaneous system operation and battery charging from a single outlet. Users needing higher wattage, USB-C output or a slimmer travel profile will need a different power solution.

How it compares

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

Price $67.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Product colorMulticolor
Power
Battery typeLithium-Ion
Size & build
Shipping weight1.36 kg
Package size414 × 305 × 104 mm

Questions about this item

What is the maximum power this adapter can supply continuously?

The adapter delivers up to 180 W at 19.5 V DC with a maximum output current of 9.23 A.

How much heat or noise should I expect when it runs all day?

It has no fan and produces no audible noise; the 1.27 lb brick warms to a typical external power-supply temperature under full 180 W load.

Which Dell laptops accept this 331-7957 adapter?

It replaces OEM part numbers including 4X5J, 74X5J, 074X5J, JVF3V, 0JVF3V, 78X5J, WD5G3, TW1P0, NPW78, FJ05H, F0G4K, 0YC9V, FA180PM111, DA180PM111, DWG4P, 0DWG4P, WW4XY, 0WW4XY, ADP-180MB B and ADP-180MB.

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