Lenovo Slim 300W AC Adapter (UL)

Overview

The Lenovo GX21F23045 is a 300 watt AC adapter designed specifically for Legion 5, Legion 5 Pro, and Legion 7 laptops that use Lenovo’s rectangular slim tip power port. It delivers a steady 4.5 amp current to support high-performance tasks such as gaming, 3D rendering, and content creation, ensuring your laptop runs at full speed even when the battery is low. With a wide input voltage range of 100 to 240 volts, this adapter works reliably in various countries without needing a voltage converter.

Key features

• Provides 300 watts of power with 4.5 amps output to meet the demands of high-performance Legion laptops
• Rectangular slim tip connector designed for quick and secure connection to compatible Lenovo Legion models
• Supports global voltage input from 100 to 240 volts at 50/60 Hz, allowing use in multiple regions without adapters
• Includes a 1.8 meter power cord with a three-prong plug for flexible and stable placement near desks or floor outlets
• Certified by multiple safety agencies including CE, UL, TUV, and BIS, ensuring compliance with international electrical and thermal standards
• Operates reliably in typical indoor environments with temperature tolerance from 0 to 40 degrees Celsius and up to 80% humidity

Key specs

• Power output: 300 watts
• Current output: 4.5 amps
• Input voltage range: 100–240 volts
• Input frequency: 50/60 Hz
• Cable length: 1.8 meters
• Connector type: Lenovo rectangular slim tip
• Operating temperature: 0 to 40 °C
• Operating humidity: up to 80% relative humidity
• Safety certifications: CE, UL, TUV, BIS

Connectivity and compatibility

This adapter is compatible with Lenovo Legion 5, Legion 5 Pro, and Legion 7 laptops that feature the rectangular slim tip power port. Its universal input voltage range makes it suitable for use worldwide, supporting users who travel or work across different locations. The three-prong plug ensures a secure connection to standard power outlets, reducing the risk of accidental disconnection during use.

Performance and reliability

Designed to deliver consistent power for demanding applications, this adapter helps prevent performance slowdowns during intensive tasks like gaming or media editing. Its certifications from multiple international safety organizations guarantee protection against electrical faults and overheating. The adapter’s operating range covers most indoor environments, making it a dependable choice for home offices, gaming setups, and professional workspaces.

Ideal uses and environments

This power adapter suits users who rely on Lenovo Legion laptops for high-performance computing, including gamers, content creators, and professionals handling resource-intensive software. It works well in home offices, gaming rooms, and professional studios where stable and sufficient power delivery is critical. Keeping one adapter at your desk and another in your backpack can simplify mobility and reduce downtime.