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Black rectangular power brick with 7.4mm barrel connector and three-prong mains lead

myVolts

myVolts 135W 19V 7.1A AC Adapter Laptop Charger

SKU CH-Q03H-5RX8T

Delivers 135 W at 19 V 7.1 A via a 7.4 mm × 5.0 mm connector with built-in overload, over-voltage and short-circuit protection

  • 135W output powers demanding HP workstations
  • 19V 7.1A delivery matches original charger specs
  • 100-240V input works worldwide without a converter
  • 4mm×5.0mm connector fits listed HP models
  • Built-in overload, over-voltage and short-circuit protection

135W 19V AC Adapter for HP Workstations

This 135-watt adapter delivers 19 volts at 7.1 amps to compatible HP desktop workstations and select Compaq models. It accepts a universal 100-240 volt input at 50-60 hertz for worldwide use. The 7.4 by 5.0 millimetre barrel connector fits the listed part numbers. The package includes the adapter and a three-prong AC power cord.

Thermals Noise and Protection

Built-in overload, over-voltage and short-circuit protection guard connected hardware during normal operation. The external brick design keeps heat away from the workstation chassis. No active cooling fan is present, so the unit runs silently in typical office environments.

Replaces HP PA-1131 and HSTNN Series Units

This adapter replaces original HP chargers such as the PA-1131-08HC and part numbers HSTNN-HA01, 397803-001 and 481420-001. The upgrade is worth it when the original supply fails, shows intermittent charging or exhibits damaged cables. It is not for users needing higher wattage than 135 watts or a different output voltage.

Highlights

  • 135W output powers demanding HP workstations
  • 19V 7.1A delivery matches original charger specs
  • 100-240V input works worldwide without a converter
  • 4mm×5.0mm connector fits listed HP models
  • Built-in overload, over-voltage and short-circuit protection

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 7.4mm×5.0mm connector to my HP laptop?

Align the 7.4mm×5.0mm barrel tip with the laptop's power jack and push straight in until it seats fully; the step people miss is confirming the centre pin polarity matches the 19V 7.1A output before powering on.

What maintenance will the 135W adapter need over time?

Keep the 3-prong inlet and 7.4mm×5.0mm tip free of dust; replace the AC power cable if the insulation cracks or the plug pins become loose.

At what load does the built-in protection engage during sustained use?

The overload, over-voltage and short-circuit protection trips when draw exceeds the rated 135W 19V 7.1A output.

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