Dell 240W Power Adapter for Precision, Alienware, Latitude & Inspiron Laptops

Overview

The Dell J938H is a 240W AC power adapter designed to provide reliable power to select Dell laptops, including Precision mobile workstations, Alienware gaming systems, Latitude business laptops, and the Inspiron 11 3162. Delivering 19.5 volts at 12.3 amps through a 7.4 mm barrel connector, it ensures your device maintains full performance during demanding tasks like video editing, 3D rendering, or extended gaming sessions. Its wide input voltage range of 100 to 240 volts makes it suitable for use in various regions without needing additional converters.

Key features

• High-capacity 240W output supports power-intensive applications without draining the battery.
• 7.4 mm barrel connector ensures a secure and compatible connection with supported Dell laptops.
• Wide input voltage range (100–240 V) allows seamless use across different countries and power standards.
• Includes mains power cable for immediate setup and use right out of the box.
• Recognized instantly by compatible Dell laptops to reduce warning messages and optimize charging rates.
• Genuine Dell accessory backed by a one-year manufacturer warranty for dependable performance.

Key specs

• Output power: 240 watts
• Output voltage: 19.5 volts
• Output current: 12.3 amps
• Connector type: 7.4 mm barrel
• Input voltage range: 100–240 volts
• Compatible models: Precision, Alienware, Latitude, Inspiron 11 3162
• Warranty: One-year manufacturer warranty

Connectivity and compatibility

This adapter is specifically designed to work with a range of Dell laptops, including high-performance Precision and Alienware models, business-focused Latitude laptops, and the compact Inspiron 11 3162. The 7.4 mm barrel connector fits securely into the power port of these devices, ensuring stable power delivery. Its broad input voltage range supports use in offices, homes, or while traveling internationally, making it a versatile choice for professionals and students alike.

Ideal uses and environments

Keeping a Dell J938H adapter on hand is a practical solution for users who rely on their laptops for demanding tasks such as video editing, 3D modeling, or gaming. It works well in home offices, client sites, or shared workspaces where having a backup or secondary charger prevents downtime. Its compatibility with multiple Dell laptop lines makes it a flexible option for IT departments managing diverse fleets of devices.