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Black rectangular 240W Dell AC adapter with 7.4mm and 5.0mm connectors and 6ft power cord

DELL

DELL 19.5V 12.31A 240W AC Adapter Precision 7730 7.4mm 5.0mm

SKU CH-C19M-37R66

240W Dell AC adapter with 7.4mm and 5.0mm connectors powers Precision 7520, 7720, 7730 and Alienware 15 R4, 17 R5 laptops

  • ColorBlack
  • TypeCharger
  • CompatibilityLA240PM180, 7XCR6, 07XCR6, DA240PM180, 0RYJJ9, RYJJ9, 8N2T2,
  • Battery TypeLithium-Ion
  • AC Adapter Voltage19.5V
  • AC Adapter Output Power240W
  • 240W output powers demanding Precision and Alienware systems
  • 5V 12.31A delivery matches original Dell specifications exactly
  • 4mm and 5.0mm connector fits Precision 7520, 7720, 7730 and Alienware 15 R4, 17 R5
  • 100-240V 50/60Hz input works worldwide without a voltage converter
  • Original 6ft power cord included for immediate desktop setup

Dell 240W AC Adapter for Precision 7730

This new Dell 19.5V 12.31A 240W AC adapter replaces the original charger for Precision 7730 mobile workstations. It matches part numbers LA240PM180, 7XCR6, 07XCR6, DA240PM180, 0RYJJ9, RYJJ9, 8N2T2, 450-AGCX, KJXPP and 450-AHHE. The 7.4mm by 5.0mm barrel connector fits the DC-in jack on the supported models. A 6 ft AC power cord is included in the box.

240W output capacity and headroom

The adapter delivers 19.5V at 12.3A for a total of 240W, powering Precision 7730, Precision 7520, Precision 7720, Alienware 15 R4 and Alienware 17 R5 under full load. It accepts AC 100-240V at 50/60Hz for worldwide use. Systems that require more than 240W or a different connector size will not operate correctly with this unit. Buyers needing a higher-wattage supply or a USB-C power source should look elsewhere.

Thermals noise and power draw

The brick runs silently with no moving parts and draws up to 240W from the mains when the laptop demands maximum power. Typical office workloads keep consumption well below that ceiling. The black plastic enclosure dissipates heat passively during extended charging sessions. No fan noise or coil whine is specified in the product data.

Highlights

  • 240W output powers demanding Precision and Alienware systems
  • 5V 12.31A delivery matches original Dell specifications exactly
  • 4mm and 5.0mm connector fits Precision 7520, 7720, 7730 and Alienware 15 R4, 17 R5
  • 100-240V 50/60Hz input works worldwide without a voltage converter
  • Original 6ft power cord included for immediate desktop setup

Specifications

BrandDELL
ModelPrecision 7730
Part NumberLA240PM180, 7XCR6, 07XCR6, DA240PM180, 0RYJJ9, RYJJ9, 8N2T2, 450-AGCX, KJXPP, 450-AHHE.
ColorBlack
TypeCharger
CompatibilityLA240PM180, 7XCR6, 07XCR6, DA240PM180, 0RYJJ9, RYJJ9, 8N2T2, 450-AGCX, KJXPP, 450-AHHE.
Battery TypeLithium-Ion
AC Adapter Voltage19.5V
AC Adapter Output Power240W
Weight0.59 LB

Questions about this item

Will the 7.4 mm by 5.0 mm barrel connector fit the charging port on my Precision 7520 or 7720?

Yes — the adapter uses the same 7.4 mm outer and 5.0 mm inner dimensions that those models require, so it plugs in directly.

How do I confirm the 19.5 V 12.3 A output is actually reaching my Precision 7730 after I plug it in?

The laptop’s battery indicator will show charging, and the BIOS power‑adapter field will report 240 W when the unit is operating correctly.

Does the package include the AC mains lead, or do I need to source a separate power cord?

The original Dell 6 ft power cord (DP/N 05120P) is included in the box, so no extra cable is required.

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