General Information
This is an AC/DC power adapter for HP/Compaq laptops with an output voltage of 19 V and an output current of up to 4.74 A, designed to replace the original power supply or provide power for laptop operation.
Connector: cylindrical plug with an outer diameter of 7.4 mm and inner diameter of 5.0 mm, with the “plus” in the center.
Power rating: approximately 90 W (19 V × 4.74 A ≈ 90 W).

Technical Specifications

• Input voltage: AC 100–240 V ~, 50/60 Hz.

• Output voltage: DC 19 V.

• Output current: up to 4.74 A.

• Maximum output power: ~90 W.

• DC connector: 7.4 mm × 5.0 mm (outer/inner diameter).

• Polarity: “plus” on the center pin.

• Protection: overcurrent, short circuit, overvoltage.

• Approximate dimensions and weight: case ~105 × 45 × 28 mm, weight ~186 g (with cable); depends on the manufacturer/replacement model.

Usage and Features

• Suitable for HP/Compaq laptops that use this type of connector and power specifications (19 V, 4.74 A). Compatible with many ProBook, Pavilion, EliteBook models, and more.

• When choosing, make sure the connector (7.4 × 5.0 mm) matches your laptop and the power specifications match (19 V, at least 4.74 A).

• If your laptop requires higher power or a different connector type, select a compatible adapter.

• Using an adapter with lower current or incorrect voltage may cause unstable operation or device failure.