AC adapter Dell 90W 19.5V 3.34A model 4DYCT for compatible Dell laptops

The Dell AC adapter 90W 19.5V 3.34A model 4DYCT is an external power supply designed to deliver stable DC power to compatible Dell laptops. It supports charging the internal battery while providing continuous power for daily tasks at home, in the office or on the move. The adapter combines a compact rectangular brick with an integrated AC cable and a DC plug, and includes basic protective circuitry to reduce risk from overloads and short circuits.

Advantages

This 90W Dell AC adapter provides consistent voltage output to maintain system performance during use and battery charging. Its compact form factor and moderate weight make it convenient for travel or carrying in a laptop bag. Built-in protection against overload and short circuit increases safety, and the standard DC plug ensures compatibility with a range of Dell laptop power ports.

Suitable for

• Everyday office work and remote work where continuous power is required
• Travel and business trips where a compact spare adapter is needed
• Home use for charging and running compatible Dell laptops
• Replacing a lost or damaged original AC adapter with matching voltage and current

Key specifications

• Output power: 90 watts
• Output voltage: 19.5 volts DC
• Output current: 3.34 amperes
• Connector type: standard barrel/DC plug for compatible Dell laptops
• Form factor: external AC adapter brick with integrated cable
• Safety features: overload and short-circuit protection

How to use

Connect the adapter to an AC mains outlet using the supplied AC cable, then insert the DC plug firmly into the laptop's power jack. Ensure the laptop is powered off or in a stable state while connecting for the first time. The adapter will charge the laptop battery and supply power to the system; monitor charging status via the laptop's indicators. Unplug the DC connector before disconnecting the AC cable if removing the adapter for transport.

Recommendations

Use the adapter with laptops that require 19.5V and up to 3.34A to avoid under- or over-powering the device. Avoid placing the adapter on soft surfaces during use to allow heat dissipation, and inspect cables and connector for damage regularly. If uncertain about compatibility, verify the laptop's required voltage and current values before use.