Power adapter Dell 90W 19.5V 3.34A model 28YJ9 for compatible laptops

Dell 90W 19.5V 3.34A power adapter model 28YJ9 is a compact AC adapter designed to supply stable, regulated power to compatible Dell laptops and other devices that accept the same voltage and connector. The adapter converts mains electricity to a controlled 19.5V DC output at up to 3.34A to charge batteries and run the system, making it suitable as a replacement unit or carry‑along spare for office, home, or travel use.

Advantages

The adapter delivers a consistent 19.5V output with up to 3.34A current capacity, ensuring reliable charging and system operation. Its compact housing and standard cable connections allow straightforward installation and easy storage. Built‑in regulation and safety features protect against overcurrent and short circuits, while compatibility with a range of devices using the same voltage and connector reduces the need for multiple chargers.

Suitable for

• Replacing a lost or damaged Dell laptop power adapter
• Keeping a spare adapter for travel or remote work
• Powering compatible notebooks and devices that require 19.5V DC at up to 3.34A
• Use in office, home, classroom, or mobile setups

Key specifications

• Output voltage: 19.5 V DC
• Maximum output current: 3.34 A
• Rated power: 90 W
• Input: AC mains (standard voltage range for region)
• Connector: standard Dell-compatible barrel connector
• Form factor: compact external AC adapter (wall/desktop style)

How to use

Connect the adapter to an appropriate AC mains outlet using the supplied mains lead, then plug the adapter's DC connector into the laptop's power jack. Verify that the laptop indicates charging or has power. For safe operation, use the adapter with devices specified for 19.5V and ensure the connector fits securely. Unplug from mains when not in use for extended periods.

Recommendations

Use this adapter in ventilated areas and avoid covering it during operation. Check device compatibility with 19.5V and 3.34A requirements before use. If the adapter becomes unusually hot, produces smoke or odor, or fails to charge, discontinue use and replace with a properly rated unit.