Dell 240W GaN Laptop Charger 7.4mm Barrel Adapter

Genuine Dell 240W GaN AC adapter with a 7.4mm round barrel tip that powers high‑performance Precision and Alienware laptops reliably.

This is an OEM Dell replacement AC adapter engineered to deliver sustained 240 watts to demanding workstations and gaming laptops. Packaged without retail box and supplied with a 3‑foot mains lead, this adapter uses a classic 7.4mm round barrel connector for a secure, tool‑free attachment. It’s built to support high CPU/GPU loads while maintaining steady power to both run your machine and charge the battery.

Which Dell models will this 240W adapter power?

This adapter is compatible with a range of Dell Precision and Alienware systems that require higher wattage input. It fits machines that use the 7.4mm round barrel connector and are specified for 240W adapters, ensuring correct voltage and amperage delivery for those models.

• Precision 7670, 7680, 7770, 7780 professional workstations
• Alienware M15 R7, M17 R5 high‑performance laptops
• Alienware X15 R2, X16, X17 R2 gaming thin & large format models
• OEM Dell specification guarantees connector and power match

How does the 7.4mm barrel tip help my setup during heavy use?

The round 7.4mm barrel connector provides a snug, low‑profile connection that resists accidental disconnects during gaming or intensive workloads. Because the power delivery is constant and designed for high loads, thermal throttling and mid‑session shutdowns are far less likely.

• Secure mechanical fit reduces unplugging from movement
• Designed for sustained 240W delivery under load
• Stable voltage helps maintain performance during long sessions
• Compatible with Lenovo‑style barrel receptacles used on listed Dell models

What’s included and how easy is it to set up?

The package contains the genuine Dell AC adapter assembly and a 3‑foot mains cable for immediate use. Setup is plug‑and‑play: connect the adapter to your laptop’s 7.4mm jack, plug the cord into a mains outlet, and the system recognizes the adapter automatically without software adjustments.

• One genuine Dell 240W GaN AC adapter unit
• 3‑foot power cord for close outlet access
• No drivers or firmware updates required—instant operation
• Non‑retail packaging reduces transit bulk while protecting the unit

Are there safety or durability features I should know about?

This genuine Dell adapter meets factory electrical safety and regulation standards typical for OEM power supplies. Its GaN-based design yields efficient conversion, and the adapter includes built‑in protection to reduce risk from surges, overheating, and short circuits.

• Overcurrent and overvoltage protection built‑in
• GaN design for improved efficiency and lower waste heat
• Durable molded cable and strain relief at both ends
• Factory‑tested to match Dell power specifications for listed models

Who is this for: If you own a Dell Precision 7670/7680/7770/7780 or an Alienware M15 R7, M17 R5, X15 R2, X16, or X17 R2 and need a reliable OEM replacement adapter, this 240W Dell unit is made for you. It’s ideal for professionals and gamers who run processor‑ or GPU‑intensive workloads and require steady, high‑wattage power delivery with the familiar 7.4mm barrel connector. Choose this genuine Dell adapter when you want compatibility, safety features, and the wattage necessary to keep high‑end laptops performing at full capacity.