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Black rectangular laptop AC adapter with 7.4mm by 5.0mm barrel connector and US power cord

NShi

NShi 90W 19V 4.74A AC Adapter 7.4mm*5.0mm laptop replacement part

SKU CH-269T-VSP8M

90W 19V 4.74A AC adapter with 7.4mm*5.0mm connector fits HP Compaq and EliteBook models including 6910p, 8510p, 6730b and 2530p

  • 90W output powers compatible HP business notebooks
  • 19V 4.74A delivery matches original charger specification
  • 4mm × 5.0mm barrel connector fits listed models
  • 100–240V input works on mains worldwide
  • Over-current, over-voltage and short-circuit protection safeguards hardware

90W 19V 4.74A AC Adapter

This 90 watt AC adapter delivers 19 volts at 4.74 amps through a 7.4mm by 5.0mm barrel connector. It is built as a direct replacement for the original charger supplied with compatible HP and Compaq business notebooks and select Pavilion models. The unit accepts 100 to 240 volt AC input at 50 or 60 hertz for worldwide use.

Replaces lost or failing original chargers

It replaces a lost, damaged or under‑performing factory adapter for the listed HP Compaq Business Notebook, EliteBook, ProBook, Presario, Envy and Pavilion series. The upgrade is worth it when the original unit no longer holds a charge, the cable is frayed or the connector pin is bent. It restores full 90 watt charging without changing the laptop’s power profile.

Plug‑in barrel connector install

Installation is a simple plug‑in: connect the DC barrel to the laptop and the AC cord to a wall outlet. No drivers or tools are required. The most common issue is ordering the wrong tip size; verify the 7.4mm by 5.0mm dimensions against the laptop’s power jack before purchase. Over‑voltage, over‑current and short‑circuit protections are built in.

Highlights

  • 90W output powers compatible HP business notebooks
  • 19V 4.74A delivery matches original charger specification
  • 4mm × 5.0mm barrel connector fits listed models
  • 100–240V input works on mains worldwide
  • Over-current, over-voltage and short-circuit protection safeguards hardware

Specifications

No published specifications for this item yet.

Questions about this item

Does the 7.4mm by 5.0mm barrel connector match the DC jack on an HP EliteBook 8530p?

Yes, the 7.4mm by 5.0mm connector is specified for the EliteBook 8530p and all other listed HP Compaq and ProBook models.

What is the correct way to connect the 100-240V input side before plugging the 19V output into the laptop?

Attach the supplied US power cord to the adapter brick first, then plug the cord into the wall outlet, and finally insert the 7.4mm barrel into the laptop DC jack.

How long should the over-voltage and short-circuit protection circuits remain effective on this 90W unit?

The protection circuits are solid-state and do not degrade with normal use; they remain active for the life of the adapter.

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