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HP HSTNN-AA44 45W power adapter with blue 4.5 x 3.0 mm tip and detachable cord

HP

HP HSTNN-AA44 power adapter 19.5V 2.31A 45W 4.5 x 3.0 mm with cord

SKU CH-6SB5-PK9WQ MPN HSTNN-AA44

Genuine 45 W AC adapter with 4.5 x 3.0 mm blue connector and power cord for compatible HP EliteBook, ProBook, Stream and thin-client models

  • Type19.5V
  • Delivers reliable 45W output for compatible HP notebooks
  • Accepts worldwide 100-240V input for travel flexibility
  • Blue-tip 4.5 x 3.0 mm connector fits listed EliteBook and ProBook models
  • Genuine HP adapter includes power cord for immediate use
  • Tested for secure wiring and solid jack engagement

Genuine 45 W replacement adapter

This HP HSTNN-AA44 adapter supplies 19.5 V at 2.31 A for 45 W total output. It includes a detachable mains cord and terminates in a 4.5 x 3.0 mm blue tip. The unit accepts 100-240 V input at 50-60 Hz for worldwide use.

Suits listed EliteBook, ProBook and Stream models

Owners of EliteBook 840 G3-G8, 850 G3-G8, 725 G3-G6, 820 G3-G4, ProBook 650 G2-G5 and G8, plus Stream 11, 13 and 14 series laptops shown in the compatibility list can use this charger. Buyers whose laptop requires a different voltage, amperage or connector size should look at another adapter.

Connector size decides fit

The 4.5 x 3.0 mm blue barrel plug is the single specification that determines whether this adapter will connect to your device. Verify the tip dimensions and colour against the original charger before ordering.

Highlights

  • Delivers reliable 45W output for compatible HP notebooks
  • Accepts worldwide 100-240V input for travel flexibility
  • Blue-tip 4.5 x 3.0 mm connector fits listed EliteBook and ProBook models
  • Genuine HP adapter includes power cord for immediate use
  • Tested for secure wiring and solid jack engagement

Specifications

Type19.5V

Questions about this item

What does the 45 W rating mean for daily charging?

The adapter supplies up to 45 watts, matching the original charger for supported EliteBook, ProBook and Stream models so the battery charges at the normal rate while the laptop runs.

What does the 4.5 x 3.0 mm blue tip determine?

The barrel connector fits only HP laptops that use the 4.5 mm outer and 3.0 mm inner diameter with a blue centre pin; it will not work on models that require a different tip size or colour.

How much space does the brick and cord need on a desk?

The power brick is a compact inline unit and the detachable mains cord is standard length, so it sits behind the laptop or on a power strip without blocking adjacent outlets.

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