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Compact black rectangular power brick with 4.0 by 1.7 mm barrel connector and detachable mains cord

E-buy

E-buy 19V 1.58A 30W AC Adapter 4.0mm*1.7mm for HP NS188LA KS170UT NU665LA NM128UA NM123UA

SKU CH-11MT-SHS10

19V 1.58A 30W AC adapter with 4.0mm × 1.7mm connector fits HP NS188LA, KS170UT, NU665LA, NM128UA and NM123UA models

  • Power adapter voltage19 V
  • Power adapter current1.58A
  • Delivers 30 W for reliable laptop charging
  • 19 V 1.58 A output matches HP requirements
  • 0 mm × 1.7 mm connector fits listed models
  • Works worldwide with 100–240 V 50–60 Hz input
  • Includes power cord for US, UK, EU or AU sockets

Replacement adapter for HP laptops

This 19V 1.58A AC adapter supplies 30W to compatible HP notebooks including the NS188LA, KS170UT, NU665LA, NM128UA and NM123UA series. It ships new with a region-appropriate power cord so it works straight from a 100–240V 50–60Hz mains supply.

4.0mm*1.7mm barrel connector

The single specification that decides fit is the 4.0mm by 1.7mm centre-positive barrel plug; only laptops that accept this exact connector will charge correctly. Polarity and dimensions must match the original charger or the unit will not seat or power the device.

30W output for everyday loads

At 30W the adapter comfortably runs typical ultraportable workloads such as web browsing, document editing and video playback while charging the battery. It will not sustain high-performance discrete graphics or heavy CPU turbo loads that exceed the 1.58A current limit.

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

What does the 30 W rating mean for daily charging?

It delivers 19 V at 1.58 A, giving up to 30 watts to power the laptop and charge the battery simultaneously.

What does the 4.0 mm × 1.7 mm connector determine?

It matches the barrel jack on the listed HP models so the plug seats securely and carries the full 19 V output.

What does the adapter need to fit on the desk or in a bag?

The brick plus the detachable mains cord with a US, UK, EU or AU plug; no extra mounting hardware is required.

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