AC adapter Dell 240W 19.5V 3-pin (MPN 450-AIDB)

Dell AC adapter 240W, output 19.5V with a 3-pin connector is an external power supply designed to provide stable high-power delivery for compatible Dell laptops and mobile workstations. It supports charging and continuous operation under demanding workloads, delivering power where integrated batteries or lower-wattage adapters may be insufficient. The compact rectangular housing and three-pin connection ensure straightforward installation and a reliable electrical connection for regular use at home, in the office, or on the move.

Advantages

This 240W adapter offers high continuous power output at 19.5V to support intensive computing tasks and fast battery charging when used with compatible systems. Its three-pin connection provides a secure fit and stable power transfer. The adapter's external design separates heat generation from the host device, helping to maintain system thermal balance during prolonged use. The unit is compatible with systems that require higher wattage than typical consumer adapters, offering a practical solution for mobile workstations and power-hungry laptops.

Suitable for

• Powering Dell laptops and mobile workstations that accept a 19.5V, high-wattage external adapter
• Charging battery packs while performing CPU- or GPU-intensive tasks
• Use in office, home office, or field environments where sustained power is required
• Replacement of original high-wattage external power supplies

Key specifications

• Output power: 240 watts
• Output voltage: 19.5 volts
• Connector: 3-pin external power connector
• Adapter type: External AC-to-DC power supply
• Typical use: Charging and continuous powering of compatible portable computers

How to use

Connect the adapter to an appropriate mains outlet using the supplied mains lead, then insert the 3-pin connector into the laptop's power inlet until it seats securely. Confirm the system indicates charging or external power mode. For first-time use, allow the adapter and laptop to stabilise thermally during heavy loads. Disconnect the mains before unplugging the adapter from the system if possible, and avoid bending or straining the cable at the connector points.

Recommendations

Use the adapter with devices that specify a 19.5V external power source and a compatible 3-pin connector. Avoid using the adapter with devices that require different voltage or connector types. Keep the adapter in a ventilated area during extended high-load operation, and inspect cables regularly for wear. Replace the unit if the housing, cables, or connector show signs of damage.