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Black rectangular HP 45W laptop charger with 4.5 x 3.0 mm tip and detachable power cord

HP

HP 45W AC Adapter Charger 4.5 x 3.0 mm Tip

SKU CH-7TWC-NNQT8

45W AC adapter with 4.5 x 3.0 mm tip powers compatible HP EliteBook, ProBook, Spectre, Split and Pavilion x2 models and includes the power cord

  • TypeCharger
  • 45W output powers compatible HP laptops efficiently
  • 5 x 3.0 mm tip matches original adapter connector
  • 100-240V input supports worldwide voltage ranges
  • Genuine HP part replaces multiple OEM part numbers
  • Includes power cord for immediate use

Genuine 45 W HP adapter for EliteBook

This genuine HP AC adapter supplies 45 watts at 19.5 volts and 2.31 amps through a 4.5 x 3.0 mm barrel connector. It matches part numbers such as HSTNN-CA40, HSTNN-DA40 and 721092-001. A standard IEC power cord is included in the box. Buyers who need a higher-wattage supply for larger workstations cannot use this unit.

Stable output across 100 to 240 V input range

The adapter accepts worldwide mains voltages from 100 to 240 V at 50 to 60 Hz without manual switching. It maintains the rated 45 W continuously while the laptop charges and runs typical workloads. Users who require sustained loads above 45 W will exceed the design limit of this brick.

Barrel tip limits interchangeability

The fixed 4.5 x 3.0 mm tip fits only HP models listed in the compatibility data such as EliteBook 725 G2, 820 G1, Folio 1040 G1 and Pavilion x2 variants. It cannot connect to devices that use USB-C Power Delivery, larger barrel sizes or proprietary slim tips. Always verify the exact laptop model before ordering.

Highlights

  • 45W output powers compatible HP laptops efficiently
  • 5 x 3.0 mm tip matches original adapter connector
  • 100-240V input supports worldwide voltage ranges
  • Genuine HP part replaces multiple OEM part numbers
  • Includes power cord for immediate use

Specifications

BrandHP
TypeCharger

Questions about this item

Does the 45 W adapter run hot or make noise when powering a laptop all day?

The 4.5 x 3.0 mm tip unit delivers 19.5 V at 2.31 A with no fan, so it stays silent and only warms slightly under continuous load.

What must I already own for this charger to work with my notebook?

You need a laptop that accepts a 4.5 x 3.0 mm barrel connector and draws up to 45 W; the AC mains cord is included in the box.

Will this 45 W unit charge an older EliteBook 820 G1 alongside a newer Spectre x2?

Yes, the adapter matches the 19.5 V 2.31 A requirement for both the EliteBook 820 G1 and Spectre 13-H210DX X2 listed in the compatible models.

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