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Dell K1PRX 240W 19.5V AC adapter with 7.4mm barrel tip and power cord

DELL

DELL K1PRX 240W 19.5V AC Adapter 7.4mm Barrel Tip With Power Cord

SKU CH-R9Z4-ZE4ST

Genuine Dell 240-watt AC adapter with 7.4mm barrel tip and power cord for compatible Alienware, G Series and Precision laptops

  • Battery typeLithium-Ion
  • 240-watt output powers demanding Dell laptops
  • 5 V at 12.31 A delivers stable current
  • 4 mm barrel tip fits listed Alienware, Precision and G Series models
  • 100-240 V input works worldwide without a converter
  • Genuine Dell OEM part with three-prong power cord included

Genuine Dell 240 W 19.5 V AC Adapter

This genuine Dell OEM adapter delivers 240 watts at 19.5 volts with a 7.4 mm barrel tip. A three-prong power cord is included. It replaces Dell part numbers K1PRX and 0K1PRX for compatible systems.

Suits Alienware, G-Series

The adapter fits the Alienware M17x, M18x, 17 R1 through R5, 15 R2 through R4, m15, m17, Area-51m, x15, x17, X51 desktops, G-Series G3, G5, G7, G15 and G16 models, and Precision M6600, M6700, M6800, 7710 through 7780 and 7560, 7670, 7680 mobile workstations. Buyers with laptops that require a different barrel size or wattage should look elsewhere.

7.4 mm barrel tip and 12.31 A output current

The 7.4 mm barrel connector and 12.31 amp output at 19.5 V DC are the critical specifications that determine compatibility. Verify your device uses this exact tip and power requirement before purchasing.

How it compares

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

Price $59.99
Pricier than about 89% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Power
Battery typeLithium-Ion

Questions about this item

How much heat does the 240-watt adapter produce when running continuously?

The unit draws up to 3.5 A at 100-240 V input and delivers 19.5 V at 12.31 A; typical efficiency for this class means some warmth is normal during all-day use.

Which cable or connector must I already have to use this adapter?

The adapter includes a three-prong AC cord and a fixed 7.4 mm barrel tip; you only need a compatible Dell laptop with the matching 7.4 mm DC jack.

Will this charger work with my older Precision M6600 or Alienware M17x?

Yes — the adapter supports Precision M6600, M6700, M6800 and Alienware M17x, M17xR2, M17xR3, M18x models that use the 7.4 mm barrel connector.

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