Lenovo ThinkCentre 90W Slim Tip AC Adapter

The Lenovo 4X21L18243 is a 90W Slim Tip AC adapter that keeps compatible ThinkCentre systems powered and ready. It provides the same dependable output as the original unit, making it a practical spare or a direct replacement whenever the factory adapter is unavailable or damaged.

This adapter has a compact design that slips easily into a laptop bag or desk drawer, so travelers, field technicians, and office users can carry power without adding bulk. A universal input range of 100 to 240 volts supports use in hotels, coworking spaces, and offices around the world, while the included 1.8 meter DC cable and 1 meter line cord help reach distant outlets in conference rooms or classrooms.

Lenovo engineers the adapter to maintain an average efficiency above 89 percent, meeting strict energy standards and reducing wasted power during long workdays. A one-year Lenovo warranty offers added peace of mind, ensuring reliable performance for everyday computing tasks.

• 90W power output with over 89 percent average efficiency
• Slim Tip connector designed for compatible Lenovo ThinkCentre systems
• Compact design that packs easily for travel or hot-desk environments
• Input range of 100–240V supports global use
• Includes 1.8 m DC cable and 1 m line cord
• Energy Star compliant for eco-friendly operation
• Backed by a Lenovo one-year warranty