Lenovo ThinkCentre 65W AC Adapter

The Lenovo 4X21J81436 is a 65 W AC adapter designed for ThinkCentre desktop systems and select ThinkBook models. It supplies power at 20 V and 3.25 A, providing a reliable source of energy whether you are working at a primary workstation or keeping a spare unit on hand for quick swaps.

The adapter uses a slim-tip charging connector that mates cleanly with compatible Lenovo devices. A 1.8 m DC output cable gives you flexibility when arranging equipment on a desk, and the included 1 m C5 power cord reaches standard wall outlets or under-desk power strips with ease. With an average conversion efficiency above 89 percent, the adapter limits wasted energy and helps keep operating temperatures within a safe range.

Because it accepts an input range of 100 V to 240 V, the same unit can travel between offices in different countries without a voltage converter. Compliance with more than twenty-five global electrical safety standards supports dependable operation in corporate IT environments, classrooms, and home offices alike. Lenovo backs the adapter with a one-year customer-replaceable warranty, so technicians can keep downtime to a minimum.

Whether you are equipping a new fleet of small-form-factor desktops, setting up a hot-desk area that needs extra power supplies, or simply replacing a lost adapter, the Lenovo 4X21J81436 offers a straightforward, efficient solution that integrates seamlessly with supported Lenovo hardware.

Highlights:

• 65 W power output with 20 V / 3.25 A rating
• Slim-tip charging connector for compatible ThinkCentre and ThinkBook systems
• 1.8 m DC cable and 1 m C5 power cord included
• Average power conversion efficiency greater than 89 percent
• Meets more than 25 global electrical safety standards
• One-year customer-replaceable warranty

• We offer free shipping in most of our items.
• Most orders are processed within a maximum of 2 business days.
• Estimated delivery times are provided at checkout.
• Tracking information is emailed after your order ships.
• We ship to most countries worldwide.
• Customs duties and taxes are the customer's responsibility.

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• 30-day free returns from the date of receiving your item.
• Items must be unused, in original condition, with tags, and in original packaging.
• Returns without prior approval will not be accepted.
• Certain items, like opened electronics or consumables, are nonreturnable.
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• A 30% restocking fee may apply for damaged or incomplete returns.

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• Product warranties are provided solely by the manufacturer.
• Warranty claims must be handled directly with the manufacturer.
• We do not manage or administer warranty claims.
• Keep your proof of purchase and original packaging for warranty purposes.
• Warranty details, including coverage and duration, are determined by the manufacturer.
• We can assist with providing manufacturer contact information, but we cannot process claims on your behalf.

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