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Black rectangular Dell 45W power adapter with 4.5mm barrel tip and 3ft cord

DELL

DELL 45W 19.5V AC Adapter 4.5 mm barrel LA45NM140 KXTTW

SKU CH-KD9H-75NTR

Genuine 45 W Dell AC adapter with 4.5 mm barrel tip, 100-240 V input and included 3 ft power cord

  • Genuine Dell part, not aftermarket replacement
  • 45 W output powers compatible Dell laptops
  • 100–240 V input works worldwide
  • 5 mm × 3.0 mm barrel tip fits supported models
  • Includes 3 ft power cord for immediate use

45 W Dell AC Adapter with 4.5 mm Tip

This genuine Dell 45 W power adapter supplies 19.5 V at 2.31 A through a 4.5 mm x 3.0 mm barrel connector. It operates on 100 V to 240 V input at 50-60 Hz and includes a 3 ft mains lead. The unit replaces Dell part numbers such as 0KXTTW, LA45NM140 and PA-1450-36D1.

Buyers who need a direct replacement

This adapter matches the specified output and tip size for the compatible Dell models listed in the part-number cross-reference. It will not suit laptops that require a different wattage, voltage or barrel diameter.

4.5 mm x 3.0 mm barrel connector

The 4.5 mm x 3.0 mm tip is the single specification that determines physical and electrical compatibility with the target laptop. Verify this exact connector size against the original adapter before purchase.

Highlights

  • Genuine Dell part, not aftermarket replacement
  • 45 W output powers compatible Dell laptops
  • 100–240 V input works worldwide
  • 5 mm × 3.0 mm barrel tip fits supported models
  • Includes 3 ft power cord for immediate use

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 4.5 mm barrel tip to my Dell laptop?

Align the 4.5 mm x 3.0 mm barrel connector with the laptop's power port and push straight in until it seats fully; the step users miss is not inserting it far enough to click.

When will the 3 ft power cord need replacing?

Replace the cord if the insulation cracks, the plug blades bend, or the connection becomes intermittent; the adapter itself has no user-serviceable parts.

What happens if I draw more than 45 W continuously?

The adapter is rated for 19.5 V at 2.31 A (45 W); sustained loads above that will trigger its internal protection and shut the output down.

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