AC adapter Dell 240W for Alienware (model R4P0K)

Dell 240W AC adapter for Alienware (model R4P0K) is an external power supply engineered to provide up to 240 watts of power to compatible Alienware laptops. It serves as a replacement or spare unit for original adapters, supplying stable voltage and a reliable connection to charge the notebook battery and power the system during intensive workloads or when stationary. The adapter connects to the laptop via the manufacturer-specific plug and includes an integrated cable to the power brick and an AC mains lead.

Advantages

This Dell 240W adapter delivers a consistent power output suitable for high-performance gaming laptops and workstations, helping maintain system stability under heavy CPU/GPU load. Its compact external form factor allows for convenient transport and storage, while the regulated output reduces the risk of voltage fluctuations. The adapter is intended to match the power requirements of compatible Alienware models and provides a direct replacement option for users needing an additional unit for travel or multi-location setups.

Suitable for

• Powering compatible Alienware laptops that require up to 240W
• Replacing a lost or damaged original adapter
• Keeping as a spare unit for travel or second workspace
• Providing stable power during gaming, content creation, or heavy multitasking

Key specifications

• Maximum output power: 240 watts
• Input: AC mains (standard voltage range dependent on region)
• Output type: DC regulated output designed for compatible Alienware laptops
• Connector: manufacturer-specific laptop plug (proprietary connector compatible with Alienware models)
• Form factor: external power brick with integrated DC cable and detachable AC mains lead

How to use

Connect the AC mains lead to a grounded wall outlet and attach the mains lead to the adapter brick. Verify that the adapter is powered by checking any LED indicator on the brick if present. Plug the adapter’s DC connector into the laptop’s power port until it is securely seated. When connected, the adapter will provide power to the laptop and charge the internal battery as allowed by the laptop’s power management. Disconnect the adapter by first unplugging the DC connector from the laptop, then removing the mains lead from the wall outlet.

Usage recommendations

Use the adapter with compatible Alienware laptops and ensure the laptop’s power requirements do not exceed the adapter’s 240W rating. Avoid exposing the adapter to moisture, excessive heat, or prolonged direct sunlight. Do not attempt to open or repair the adapter yourself; use authorized service channels for inspection or replacement. For best performance, use the adapter with properly rated mains outlets and grounding and avoid using unapproved extension cords or adapters that may affect power delivery.