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Black rectangular AC adapter with 4.5mm round tip and power cord

LORDWORLD

LORDWORLD 45W Round Tip Laptop Charger 19.5V 2.31A

SKU CH-KXNR-7H5SV

A 45 W AC adapter with a 4.5 mm round tip delivers 19.5 V at 2.31 A for Dell Inspiron, XPS, Latitude, Vostro and OptiPlex models

  • Delivers 45W at 19.5V 2.31A for reliable laptop charging
  • Works with Dell Inspiron 11, 13, 14, 15, 17 across 3000, 5000, 7000 series
  • Accepts 100-240V 50-60Hz input for worldwide travel use
  • 5mm x 3.0mm round tip with central pin matches original connector
  • Replaces Dell part numbers LA45NM140 DA45NM140 AA45NM131 DA45NM131 HA45NM140 HK45NM140

Compatible Dell models

This 45W charger fits Dell Inspiron 11, 13, 14, 15 and 17 models across the 3000, 5000 and 7000 series. It also supports select XPS, Latitude, Vostro and OptiPlex units. The round tip matches the 4.5mm outer and 3.0mm inner diameter with a central pin used by those laptops.

Power input and thermal behaviour

The adapter accepts 100 to 240V at 50 to 60Hz, so it works on mains worldwide without a voltage switch. It delivers a steady 19.5V at 2.31A up to 45W. The single brick design runs silently and stays cool during normal charging sessions.

Build integration

One compact unit replaces the original AC adapter and power cord, reducing cable clutter in a bag. The fixed round connector plugs directly into supported Dell laptops. Buyers whose devices need a different tip size or higher wattage will need another solution.

Highlights

  • Delivers 45W at 19.5V 2.31A for reliable laptop charging
  • Works with Dell Inspiron 11, 13, 14, 15, 17 across 3000, 5000, 7000 series
  • Accepts 100-240V 50-60Hz input for worldwide travel use
  • 5mm x 3.0mm round tip with central pin matches original connector
  • Replaces Dell part numbers LA45NM140 DA45NM140 AA45NM131 DA45NM131 HA45NM140 HK45NM140

Specifications

BrandLORDWORLD

Questions about this item

How do I install the 4.5 mm × 3.0 mm round tip with central pin on my Dell Inspiron, and what step is often missed?

Align the central pin with the laptop socket before pushing the 4.5 mm outer diameter tip straight in; the step often missed is fully seating the connector until the pin clicks, otherwise the 19.5 V 2.31 A output will not engage.

What maintenance or replacement will this 45 W charger need over time?

The detachable AC cord and the 4.5 mm × 3.0 mm tip cable are the wear items; inspect the strain reliefs near the brick and the plug for fraying, and replace the cord or the whole adapter if insulation damage appears.

What limit appears first when this 100-240 V 45 W adapter runs under sustained load?

The 45 W ceiling is reached before thermal throttling; continuous draw at 19.5 V 2.31 A will hit the rated maximum, so the brick warms up but stays within design limits if ventilation is adequate.

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