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Black rectangular AC adapter with blue-tip 4.5 by 3.0 mm connector and detachable power cord

Blueskysea

Blueskysea 741727-001 45W 19.5V 2.31A 4.5×3.0mm laptop AC adapter

SKU CH-CRWN-N0KYF MPN 741727-001

Replacement 45W AC adapter with 4.5×3.0mm connector for HP Pavilion and Stream laptops

  • TypeAC Adapters
  • 45W output powers compatible HP laptops efficiently
  • 5V 2.31A DC delivery matches original charger specs
  • 5×3.0mm blue-tip connector fits listed Pavilion and Stream models
  • 100-240V AC input works on mains worldwide
  • Package includes adapter and AC power cable

45W 19.5V replacement adapter

This 45-watt AC adapter replaces the original charger for compatible HP Pavilion and Stream laptops. It delivers 19.5 volts at 2.31 amps through a 4.5 by 3.0 millimetre blue-tip connector. The unit accepts a universal 100 to 240 volt input at 50 to 60 hertz. It is intended for students and business users who need a direct replacement power supply.

Sustained 45W output stability

Under continuous load the adapter maintains its rated 45-watt output without exceeding the specified voltage and current limits. The 19.5 volt DC rail stays steady while powering the laptop and charging the battery simultaneously. Thermal management is handled by the sealed enclosure during normal indoor use. No active cooling or external heatsink is employed.

4.5×3.0mm barrel connector constraint

The fixed 4.5 millimetre outer and 3.0 millimetre inner diameter barrel plug fits only HP models that use this exact tip size. Polarity and keying are matched to the listed Pavilion x360 11, 13 and 15 series and related part numbers. Laptops requiring a different connector diameter, pin layout or voltage cannot use this adapter. No alternative tips or voltage selection are provided.

Highlights

  • 45W output powers compatible HP laptops efficiently
  • 5V 2.31A DC delivery matches original charger specs
  • 5×3.0mm blue-tip connector fits listed Pavilion and Stream models
  • 100-240V AC input works on mains worldwide
  • Package includes adapter and AC power cable

Specifications

TypeAC Adapters

Questions about this item

How much heat does the 45 W 19.5 V 2.31 A adapter produce when it runs all day?

The unit draws AC 100-240 V at 50-60 Hz and delivers 45 W continuously, so warmth is comparable to other 45 W laptop bricks.

Which mains lead must I already own to use this adapter?

The box includes a standard AC power cable, so no extra lead is required.

Will the 4.5 × 3.0 mm blue-tip connector fit the HP Pavilion x360 11-k120nr I still use?

Yes, the 4.5 × 3.0 mm blue-tip plug matches the Pavilion x360 11-k120nr charging port.

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