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Black rectangular 45W AC adapter with 4.5 by 3.0mm barrel connector and detachable two-prong cord

myVolts

myVolts 19.5V 2.31A 4.5x3.0mm 45W ac adapter

SKU CH-6AK8-9G621

A 45W AC adapter delivering 19.5V at 2.31A through a 4.5mm by 3.0mm barrel connector, compatible with numerous HP Stream, Pavilion, Spectre and EliteBook models and bundled with a two-prong mains cord

  • 45W output powers compatible HP laptops efficiently
  • 5V 2.31A DC matches original adapter specifications
  • 5mm x 3.0mm barrel connector fits listed models
  • 100-240V AC input works worldwide without converter
  • Includes detachable 2-prong mains cable for immediate use

Compatible HP charger

This 45W AC adapter replaces original HP part numbers 741727-001 740015-002 HSTNN-CA40 ADP-45WD B. It fits EliteBook Folio 1040 G1 Split x2 Spectre x2 Pavilion x2 and TouchSmart 15-n models listed in the compatibility table. The unit is new and includes a two-prong mains cable.

Build and connectors

Input accepts 100-240V 1.5A 50/60Hz for worldwide use. Output delivers 19.5V 2.31A through a 4.5*3.0mm barrel plug. The fixed cable and compact brick are designed for daily carry and desk use. No grounding pin is present on the mains lead.

Upgrade context

This adapter matches the original 45W specification so it restores factory charging speed. It does not increase power delivery for faster charging or higher loads. Buyers needing a higher-wattage supply for docking stations or discrete graphics should verify their laptop's maximum input before purchasing.

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

What output does the 4.5x3.0 mm connector deliver and what power does that cap at?

The connector supplies 19.5 V at 2.31 A, limiting the adapter to 45 W maximum.

What clearance does the 4.5x3.0 mm barrel plug need to seat properly?

The plug has a 4.5 mm outer diameter and a 3.0 mm inner diameter, matching the laptop's DC jack dimensions exactly.

How is the adapter connected to mains power and what step is often missed?

Plug the included 2-prong cord into the adapter's IEC inlet, then into a 100-240 V wall socket; the step often missed is fully seating the cord in the inlet before powering on.

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