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HP 40W power adapter brick with 4.0 x 1.7 mm tip and power cord

HP

HP HSTNN-LA18 40W power adapter 19.5V 2.05A

SKU CH-S32W-6Q5MB MPN HSTNN-LA18

Delivers 40 W at 19.5 V 2.05 A with 4.0 × 1.7 mm tip and included power cord

  • Genuine HP charger ensures reliable power delivery
  • 40W output at 19.5V 2.05A matches original specifications
  • Universal 100-240V input works worldwide
  • 0 x 1.7 mm tip fits compatible HP laptops
  • Includes power cord for immediate use

Genuine 40W HP adapter for 19.5V laptops

This genuine HP HSTNN-LA18 adapter supplies 19.5 volts at 2.05 amps for a total of 40 watts. It matches the original charger shipped with compatible HP notebooks. The unit includes a detachable power cord for immediate use.

Plug-in replacement with 4.0 x 1.7 mm tip

Installation is a simple plug into the laptop barrel jack and a wall outlet; the 4.0 by 1.7 millimetre connector fits the designated port directly. Common issues arise only if the tip size or the 19.5 volt output does not match the device requirements.

Limited to 40 watts at 19.5 volts

The adapter delivers a fixed 19.5 volt output up to 40 watts, so it cannot charge systems that demand higher wattage or a different voltage. It accepts worldwide 100 to 240 volt input at 50 to 60 hertz for travel flexibility.

Highlights

  • Genuine HP charger ensures reliable power delivery
  • 40W output at 19.5V 2.05A matches original specifications
  • Universal 100-240V input works worldwide
  • 0 x 1.7 mm tip fits compatible HP laptops
  • Includes power cord for immediate use

Specifications

ModelHSTNN-LA18

Questions about this item

How can I confirm the adapter is delivering the correct 19.5V 2.05A output after plugging it in?

Use a multimeter on the 4.0 x 1.7 mm tip to verify 19.5V under load; the laptop should charge without the power LED flickering.

Does the package include the mains lead or must I buy a separate power cord?

The box contains the adapter and a detachable power cord rated for 100-240V~ 1.0A 50-60Hz input.

My laptop needs a 40W charger with a 4.0 x 1.7 mm tip — is this the right part number?

Yes, model HSTNN-LA18 (P/N 580402-001) matches 40W 19.5V 2.05A output and the 4.0 x 1.7 mm connector.

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