AC Adapter HP 90W Smart (model 8NT28AV) — 90W power supply for HP laptops, external adapter

AC Adapter HP 90W Smart (model 8NT28AV) is a 90-watt external power supply designed to provide stable power and charging for compatible HP laptops. The adapter delivers sufficient power for operation and battery charging, includes a standard DC output connector, and incorporates built-in safety protections to guard against overcurrent, overvoltage and short circuits. It is intended as a replacement or spare for original HP power adapters and for use across home, office and travel environments.

Advantages

The 90W output supports sustained laptop performance while charging the battery, enabling simultaneous use and charging. Compact external design simplifies transport and storage, and integrated safety features reduce the risk of damage to the laptop or battery. The adapter’s compatibility with supported HP models makes it a practical option for replacing worn or lost chargers.

Suitable for

• Charging and powering compatible HP laptops
• Replacing a damaged or lost original adapter
• Portable use during travel or commuting
• Home and office workstation setups

Key specifications

• Output power: 90 W
• Output type: DC with standard barrel connector (as supplied)
• Input: AC mains (voltage and frequency as per regional standards)
• Protection features: overcurrent, overvoltage and short-circuit protection
• Form factor: external brick-style adapter with attached cable

How to use

Connect the adapter to an appropriate AC mains outlet using the supplied power cable, then insert the DC connector firmly into the laptop’s power jack. Ensure the connection is secure and avoid placing strain on the cable or connector. When not in use, disconnect the adapter from the mains and the laptop. Use only on devices specified as compatible and follow the laptop manufacturer’s charging guidelines.

Usage recommendations

To maintain optimal performance, use the adapter in dry, well-ventilated locations, avoid covering the adapter while in use, and check for visible damage to cables or connectors before each use. If the adapter becomes excessively hot, noisy or shows signs of malfunction, discontinue use and replace it with a proper service item.