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Black rectangular power brick with green LED and barrel connector with central pin

myVolts

myVolts 240W 19.5V 12.3A ac adapter

SKU CH-HK56-3J21W

A 240W 19.5V 12.3A AC adapter with a 7.4mm x 5.0mm connector for Alienware M17x, M18x, X51 and Precision M4700, M6400, M6500, M6600, M6700, M6800 laptops

  • 240W output powers demanding Alienware and Precision laptops
  • 5V 12.3A delivery matches original PA-9E specifications
  • 100-240V input enables worldwide use without a voltage converter
  • 4mm x 5.0mm connector with central pin ensures secure fit
  • Built-in power LED indicator confirms charging status at a glance

240W 19.5V replacement adapter

This 240W AC adapter delivers 19.5V at 12.3A through a 7.4mm by 5.0mm connector with a central pin. It suits owners of Alienware M17x, M18x and X51 models plus Precision M4700, M6400, M6500, M6600, M6700 and M6800 workstations who need a new power supply. The unit accepts 100-240V input for worldwide use and includes a three-prong outlet cord and a power LED indicator.

Upgrades 180W units for high-load systems

The adapter replaces 180W chargers rated at 19.5V 9.23A such as part numbers PA-9E, FWCRC, U896K, Y044M and Y047M. The higher 240W headroom is worth it when the original supply cannot sustain peak GPU and CPU draw during gaming or rendering sessions. It is not for buyers whose laptop requires a different voltage, connector geometry or a lower wattage brick that the firmware expects.

Steady 240W output under continuous load

Under sustained load the adapter maintains its full 240W rating without throttling, thanks to compliance testing that verifies thermal and electrical limits. The power LED confirms operation at a glance while the 100-240V input stage handles line-voltage variation without interrupting output. It is not for users who need a compact travel charger or a USB-C power-delivery solution.

Highlights

  • 240W output powers demanding Alienware and Precision laptops
  • 5V 12.3A delivery matches original PA-9E specifications
  • 100-240V input enables worldwide use without a voltage converter
  • 4mm x 5.0mm connector with central pin ensures secure fit
  • Built-in power LED indicator confirms charging status at a glance

Specifications

No published specifications for this item yet.

Questions about this item

Does the 7.4 mm × 5.0 mm connector with central pin match my Alienware M17x R4 power port?

Yes, the 7.4 mm × 5.0 mm barrel connector with central pin is the exact fit for Alienware M17x R4 and other listed models.

How do I install the adapter and what step is often missed?

Plug the three‑prong power cord into the adapter, insert the 7.4 mm barrel into the laptop, then connect the cord to a 100‑240 V outlet; the power LED confirms correct polarity.

When will the power cord or adapter need replacement?

The 30‑day return window and 12‑month warranty cover early faults; replace the cord if the plug or insulation shows wear, and the adapter if output drops below 19.5 V 12.3 A.

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