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Revitol HA45NM140 internal power cable with 4.5mm by 3.0mm barrel connector

Revitol

Revitol HA45NM140 internal power cable 19.5V 2.31A 45W 4.5mm*3.0mm

SKU CH-4Q3H-FEBW9 MPN HA45NM140

Delivers 19.5V 2.31A 45W through a 4.5mm*3.0mm connector for compatible Dell XPS 12, XPS 13 and L321X 7437 models

  • Delivers stable 19.5V 2.31A 45W power to compatible Dell laptops
  • Wide 100-240V 50-60Hz input suits global mains voltages
  • 5mm*3.0mm barrel connector matches original Dell interface
  • Fits Dell XPS 12, XPS 13, L321X 7437 and 15-3552 models
  • Includes power cord for immediate replacement use

Dell XPS 12 and 13 compatibility

This internal power cable is built as a direct replacement for the original Dell LA45NM140 and HK45NM140 adapters. It supplies 19.5 V at 2.31 A for a total of 45 W, matching the factory specification for XPS 12, XPS 13 and L321X 7437 systems. The unit ships new with the required AC power cord included.

4.5 mm × 3.0 mm barrel connector

The single specification that determines fit is the 4.5 mm outer and 3.0 mm inner diameter barrel plug. Only devices designed for this exact coaxial interface will seat securely and maintain reliable contact. Verify the port dimensions on your laptop before ordering to avoid a loose or non-functional connection.

Continuous 45 W delivery under load

Rated for sustained output of 19.5 V and 2.31 A across the full 100–240 V, 50–60 Hz input range, the adapter maintains its 45 W rating during extended charging sessions. Thermal protection engages if internal temperatures exceed safe limits, preventing damage to both the power supply and the connected notebook.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 70% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What does the 45 W output actually deliver to a Dell XPS 12 or XPS 13?

It supplies 19.5 V at 2.31 A, matching the 45 W requirement for the listed Dell XPS 12, XPS 13 and L321X 7437 models.

What connector standard does the 4.5 mm × 3.0 mm barrel use and what does it limit?

The 4.5 mm × 3.0 mm barrel is the Dell-specific interface; it only fits devices that accept that exact centre-pin size and 19.5 V polarity.

What clearance or mounting points does the cable need inside the chassis?

The cable terminates in the 4.5 mm × 3.0 mm plug and includes a standard AC power cord; no internal brackets or screw mounts are required.

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