Lenovo 4X21L38742 power adapter/inverter Indoor 230 W Black

The Lenovo 4X21L38742 230W Indoor Black power adapter is a compact external power supply intended for indoor use with compatible PCs. It delivers up to 230 watts of DC power from an AC mains input, supporting a wide input voltage range of 100–240V. The adapter has a slim, rectangular housing finished in black and includes international safety certifications (CCC, CE, UL) to meet regulatory requirements for electrical safety and electromagnetic compatibility.

Advantages

This power adapter offers stable high-power output suitable for demanding laptop and portable workstation use while remaining compact in size. Its broad input voltage range enables operation in different regions without additional converters. The adapter’s certified design provides built-in protections and compliance with common safety standards, and the black housing provides a discreet appearance for home or office environments.

Suitable for

• Powering compatible Lenovo laptops and portable workstations that require up to 230W.
• Replacing a factory adapter for indoor use in home, office, or studio settings.
• Providing a stable mains-to-DC supply for high-power peripherals that accept the adapter’s output specifications.

Key specifications

• Output power: 230 W
• Input voltage range: 100–240 V AC
• Colour: Black
• Weight: 0.95 kg
• Dimensions (L×W×H): 169 mm × 87 mm × 25.4 mm
• Certifications: CCC, CE, UL

How to use

Connect the adapter to an appropriate mains outlet using the supplied or compatible mains lead, then attach the output plug to the corresponding power port on the PC. Ensure the device and adapter connectors match and that the input voltage of the mains supply is within the 100–240 V range. Allow the adapter to ventilate during use and place it on a stable, heat-resistant surface. Disconnect the adapter from the mains when not in use or before moving the device.

Recommendations

To maintain reliable operation, avoid covering the adapter while it is powered, periodically check the cable and connectors for wear, and use only compatible power cords and device connectors. If you notice abnormal heat, noise, or odor, disconnect immediately and have the adapter inspected or replaced.