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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.

How it compares

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

Price $30.99
Typical for this category: the median of 27,790 items is $30.99.

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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