Lenovo 4X71K53891

Overview

The Lenovo 4X71K53891 is a 16GB DDR5 4800MHz UDIMM memory module designed to enhance the performance of Lenovo desktop systems that support DDR5 memory. By increasing your system’s RAM capacity, it allows the processor to handle data more efficiently, improving responsiveness during multitasking, gaming, and content creation. With a high data rate of 4800MHz, this module offers faster bandwidth compared to previous DDR4 memory, making it easier to work with large files and multiple applications simultaneously.

Key features

• 16GB capacity expands your system’s multitasking capabilities and overall memory space
• 4800MHz speed provides higher bandwidth for smoother performance in demanding applications
• 288-pin UDIMM form factor ensures compatibility with most Lenovo desktop motherboards
• Unbuffered design reduces latency by allowing direct communication between memory and CPU
• Certified for select Lenovo desktops to guarantee stable and reliable operation
• Customer Replaceable Unit status enables easy self-installation without voiding warranty
• Backed by a three-year Lenovo warranty for long-term reliability and support

Key specs

• Memory type: DDR5 SDRAM
• Capacity: 16 GB
• Speed: 4800 MHz
• Form factor: 288-pin UDIMM
• Design: Unbuffered
• Compatibility: Select Lenovo desktop motherboards supporting DDR5
• Warranty: Three years from Lenovo

Installation and setup

Installing this memory module is straightforward and user-friendly. Simply power down your Lenovo desktop, open the case, and insert the module into an available DDR5 slot until the latches click into place. Its Customer Replaceable Unit classification means you can upgrade your system without needing professional service, while maintaining your warranty coverage.

Ideal uses and environments

This memory module is well suited for users who require enhanced system responsiveness and multitasking ability, such as professionals working with large spreadsheets, photo editors, gamers seeking consistent frame rates, and content creators managing sizable files. It fits naturally into Lenovo desktop setups where upgrading to DDR5 memory can unlock better performance and future-proof the system for upcoming software demands.

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, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, 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; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

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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