Virtalähde Dell 240 W 19,5 V (malli 7WK56) yhteensopiville Dell-kannettaville

Dell AC Adapter 240W 19.5V (Model 7WK56) is a high-power external power supply designed for compatible Dell laptops and mobile workstations. Providing a continuous 240W output at 19.5V, it supports charging of high-capacity batteries and powering demanding components during intensive tasks. The adapter is intended as a replacement or spare unit to restore reliable power delivery in office, home, or mobile environments. Verify connector and device compatibility before use.

Advantages

The adapter delivers stable 240W output with regulated 19.5V voltage to maintain consistent system performance under load. Built-in protection features guard against over-voltage, over-current and short circuits, helping protect the connected laptop and battery. The compact rectangular brick design with integrated cable management simplifies installation and transport while reducing cable clutter. The adapter is suitable for prolonged use and supports both charging and operation of power-hungry components.

Suitable for

• Replacing a faulty or lost power adapter for compatible Dell laptops and mobile workstations
• Providing a spare adapter for travel or mobile work setups
• Charging high-capacity laptop batteries and powering CPU/GPU-intensive workloads
• Office and home environments where reliable continuous power is required

Key specifications

• Output power: 240 watts
• Output voltage: 19.5 volts
• Input: standard AC mains voltage (region dependent)
• Connector type: manufacturer-specific barrel/DC connector — verify fit with your laptop
• Protection: over-voltage, over-current and short-circuit safeguards
• Form factor: external brick with attached power cable

How to use

Confirm that the adapter's connector and voltage match the requirements of your Dell laptop before connecting. Connect the adapter to an appropriate AC mains outlet using the supplied or compatible power cord, then attach the output connector to the laptop power jack until it seats firmly. When first powering the system, allow the battery to charge and the adapter to regulate output; avoid repeatedly connecting and disconnecting under heavy load. If the laptop does not indicate charging or the adapter becomes unusually hot, disconnect and inspect connections and compatibility.

Recommendations

Use the adapter on a flat, well-ventilated surface to prevent overheating and avoid covering the brick during operation. Store the adapter in a dry environment and avoid excessive bending of cables near the connector. Replace the adapter if casing is cracked, cables are frayed, or protection indicators show faults. Always verify connector polarity and fit before use.