Power adapter Lenovo 4X21L18247 300W indoor, 100–240V input, 1.8 m cable, black, 200×100 mm

The Lenovo 4X21L18247 is a 300W indoor power adapter for PCs, supplied with a 1.8 m cable and compatible with 100–240 V input. It is UL/CSA/IEC certified for safety and reliability and has a compact rectangular housing designed for indoor use. The adapter is black, weighs approximately 500 g, and fits setups where a moderate-power external PSU is required.

Advantages

The adapter provides stable 300 W output power suitable for desktops and high‑draw peripherals. Wide input frequency compatibility (50/60 Hz) and broad input voltage range (100–240 V) allow use in different regions. Its certifications (UL/CSA/IEC) confirm compliance with common safety standards. The compact dimensions and 1.8 m cable simplify placement and cable management in confined indoor spaces.

Suitable for

• Desktop PCs and small workstations requiring external 300 W power
• Indoor office and home computing setups
• Replacement or spare power adapter for compatible Lenovo equipment

Key specifications

• Output power: 300 W
• Input voltage range: 100–240 V
• Input frequency: 50/60 Hz
• Dimensions (W × D × H): 238 × 144 × 54 mm
• Weight: 500 g
• Operating temperature range: 5–40 °C
• Colour: Black
• Cable length: 1.8 m

How to use

Connect the adapter to a compatible PC power input and plug the mains lead into a grounded outlet within the specified voltage range. Ensure adequate ventilation around the adapter and avoid covering it during operation. Operate the adapter only indoors within the stated ambient temperature range and observe the equipment manufacturer’s instructions for connector orientation and secure connection.

Usage recommendations

Use the adapter with compatible Lenovo devices or other equipment rated for 300 W output. Verify mains voltage compatibility before use, avoid exposure to liquids, and replace the adapter if the housing or cable shows damage. For reliable performance, keep vents unobstructed and allow the adapter to cool between extended high‑load sessions.