Lenovo 4X20E50574

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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