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Black rectangular AC adapter with 4.0mm barrel connector and detachable power cord

E-buy

E-buy 19V 1.58A 30W AC Adapter 4.0mm*1.7mm for HP NU340LA NQ204PA NQ210PA NQ213PA NB134UA NB134UAR NB137UA

SKU CH-EPH3-XK77A

19V 1.58A 30W AC adapter with 4.0mm*1.7mm connector for compatible HP laptops, includes power cord

  • Power adapter voltage19 V
  • Power adapter current1.58A
  • Delivers stable 19 V 1.58 A output for reliable laptop charging
  • 30 W capacity matches original adapter power requirements
  • 0 mm × 1.7 mm connector fits listed HP models
  • 100–240 V 50–60 Hz input works worldwide with included cord
  • 24-month warranty period included with the adapter

HP laptop compatibility

This 30W AC adapter delivers 19V at 1.58A for a range of HP models including NU340LA, NQ204PA, NQ210PA, NQ213PA, NB134UA, NB134UAR and NB137UA. The 4.0mm by 1.7mm barrel connector matches the original charging port on these notebooks. A region-specific power cord is included so the unit works from 100 to 240V mains supplies worldwide.

Thermal and electrical behaviour

The adapter operates from a 50 to 60Hz AC input and converts it to a steady 19V DC output rated at 30W. Under normal load the unit runs within its specified current limit of 1.58A without requiring active cooling. No fan or moving parts are present so acoustic output is negligible during typical charging sessions.

Upgrade context and limits

This supply replaces a lost or damaged original charger for the listed HP laptops and restores full charging speed. It is not suitable for devices that demand a higher wattage or a different connector diameter. Buyers whose notebooks require more than 30W or a USB-C power delivery profile should seek a compatible higher-capacity unit instead.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $14.99
Cheaper than about 83% of the 27,790 comparable items (median $30.99).

Specifications

Power
Power adapter voltage19 V
Power adapter current1.58A

Questions about this item

How do I install the 4.0mm*1.7mm connector and what step do people miss?

Plug the barrel tip firmly into the laptop's DC jack until it clicks, then attach the country-specific power cord to the brick and a 100 ~ 240V 50~60Hz outlet; the step often missed is verifying the tip orientation before forcing it.

What maintenance or replacement will this 30W adapter need later?

The detachable power cord can wear at the strain relief; replace it with any IEC C7 lead that matches your wall socket. The sealed adapter itself has no user-serviceable parts and carries a 24-month warranty.

What limit appears first when this 19V 1.58A unit runs under sustained load?

Continuous 30W output is the ceiling; prolonged maximum draw will trigger thermal protection and shut the adapter down until it cools.

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