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HP 45 W AC adapter brick with detachable power cord

HP

HP HSTNN-LA40 45 W AC adapter 19.5 V 2.31 A with cord

SKU CH-1NJK-REQG1 MPN HSTNN-LA40

Delivers 45 W at 19.5 V 2.31 A for HP Stream 11 Pro G3 laptops and includes a power cord

  • Genuine HP adapter powers Stream 11 Pro G3 reliably
  • 45 W output at 19.5 V 2.31 A matches laptop requirement
  • Universal 100-240 V 50-60 Hz input works worldwide
  • Built-in safeguards protect against short circuit and overheating
  • Includes power cord for immediate use

45 W HP AC adapter for Stream 11 Pro G3

This genuine HP adapter supplies 19.5 V at 2.31 A for a total of 45 W. It accepts a universal 100-240 V input at 50-60 Hz and includes the power cord. The unit is new and built with safeguards against incorrect voltage, short circuit and internal overheating.

Who should use this adapter

It suits owners of an HP Stream 11 Pro or 11 Pro G3 laptop who need a replacement or spare charger. Buyers with laptops that require a different output voltage, a higher wattage or a proprietary connector other than the one on this model should look elsewhere.

Deciding specification: 45 W output

The 45 W rating is the single figure that determines compatibility. If the original charger for the target laptop is rated at 45 W with 19.5 V 2.31 A output, this adapter will match the power requirement. A different wattage or voltage means this is not the correct part.

Highlights

  • Genuine HP adapter powers Stream 11 Pro G3 reliably
  • 45 W output at 19.5 V 2.31 A matches laptop requirement
  • Universal 100-240 V 50-60 Hz input works worldwide
  • Built-in safeguards protect against short circuit and overheating
  • Includes power cord for immediate use

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 45 W HP HSTNN-LA40 adapter, and what step is often missed?

Connect the DC plug to the laptop’s power jack, then attach the supplied AC cord to the adapter’s IEC inlet and plug it into a 100-240 V outlet; the step users skip is seating the cord fully into the adapter before powering on.

What maintenance or replacement will the HP HSTNN-LA40 need over time?

The detachable AC cord can wear at the strain relief; replace it with another IEC C7 cord if insulation frays. The adapter itself has no user-serviceable parts and is replaced as a unit when output drops below 19.5 V 2.31 A.

What limit appears first when the HP HSTNN-LA40 runs continuously at full load?

The 45 W output ceiling is reached first; sustained draw at 19.5 V 2.31 A triggers the internal overheating safeguard, which shuts the unit down until it cools.

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