AC adapter Dell 240W 19.5V 3-pin model 450-AARM for compatible laptops and docking stations

Dell AC adapter 240W 19.5V 3-pin model 450-AARM is an external power supply designed to provide stable power to compatible laptops and docking stations. Delivering up to 240 watts at 19.5 volts through a three-pin connector, the adapter supports high-performance notebooks and multi‑port docking setups where higher power delivery is required. It is intended to replace or complement original equipment for office, home, or mobile workstation use and to maintain reliable charging and system operation under heavy load.

Advantages

This 240W Dell AC adapter offers consistent voltage regulation and sufficient wattage for demanding systems, reducing the risk of power-related performance throttling. Its three-pin connector design ensures a secure electrical connection and compatibility with a range of docking stations and laptop power inputs that accept this form factor. The adapter is compact for its power class and engineered to provide stable output during extended use, making it suitable for continuous office or travel scenarios.

Suitable for

• High‑performance laptops requiring up to 240W power delivery
• Docking stations that accept a 3‑pin external power input
• Workstations used for video editing, CAD, or other CPU/GPU intensive tasks
• Office and mobile setups where reliable, continuous power is needed

Key specifications

• Output power: up to 240 watts
• Output voltage: 19.5 volts DC
• Connector type: 3‑pin external power connector
• Intended use: external AC adapter for laptops and docking stations
• Form factor: compact external brick suitable for desk or travel use

How to use

Connect the adapter to an appropriate AC mains outlet using the compatible power cord, then insert the 3‑pin connector firmly into the laptop or docking station power input. Verify the device indicates charging or external power before use. For best results, place the adapter on a flat, stable surface with adequate ventilation during operation. Disconnect from the mains and device before performing any maintenance on your computer or docking station.

Usage recommendations

Use this adapter only with compatible devices that accept a 19.5V, 240W 3‑pin input. Avoid covering the adapter during prolonged use to prevent overheating and ensure stable ambient temperature and ventilation. If in doubt about compatibility, check the laptop or docking station’s power requirements and connector type before connecting.