Lenovo ThinkPad 170W AC Adapter (Slim Tip)

Overview

The Lenovo 4X20E50574 is a 170W AC adapter designed specifically for ThinkPad laptops that use the slim tip power connector. It delivers reliable and consistent power to keep your laptop charged whether you are working at your desk, traveling, or attending meetings. With a universal input voltage range from 100 to 240 volts, this adapter works well in various countries without the need for a voltage converter. Its compact size and lightweight design make it easy to carry, fitting neatly into laptop bags or backpacks for professionals and students on the go.

Key features

• Provides efficient and consistent 170W power output to maintain optimal laptop performance during use and charging
• ENERGY STAR V (ES 2.0) certification ensures energy efficiency, reducing power consumption and environmental impact
• Slim tip connector designed to fit securely with compatible ThinkPad laptops, preventing loose connections
• Universal AC input supports 100 to 240V at 50/60 Hz, enabling worldwide use without additional adapters
• Compact dimensions and lightweight build make it convenient for travel and daily commuting
• Certified for safety and quality with multiple approvals including C-Tick, GS, BSMI, FCC, and CE, providing peace of mind

Key specs

• Power output: 170 watts
• Input voltage: 100–240 V AC, 50/60 Hz
• Connector type: Slim tip
• Dimensions: 6.1 x 2.9 x 1.1 inches
• Weight: 21.6 oz (600 grams)
• Energy efficiency rating: ENERGY STAR V (ES 2.0)
• Certifications: C-Tick, GS, BSMI, FCC, CE

Compatibility and usage

This adapter is compatible with ThinkPad laptops that require a slim tip power connector, making it a strong choice for users who need a reliable replacement or spare charger. It is not compatible with models that use a round barrel-type connector, so verifying your laptop’s power port is essential before purchase. Its universal voltage input allows seamless use across different regions, supporting professionals and students who travel frequently or work in multiple locations.

Portability and design

The adapter’s compact and lightweight design ensures it fits comfortably in most laptop bags without adding significant bulk or weight. This makes it practical for daily commuting, business trips, or remote work setups where carrying a bulky charger would be inconvenient. The slim tip connector also helps maintain a secure connection, reducing the risk of accidental disconnections during use.