Lenovo 4XB0T83221

Overview

The Lenovo 4XB0T83221 is a 512 GB internal solid state drive designed to upgrade storage in select ThinkPad laptops. It uses the PCIe NVMe interface and fits the compact M.2 2242 slot, providing fast data transfer speeds up to 2000 MBps for reading and 860 MBps for writing. This SSD enhances system responsiveness by reducing boot times and speeding up application launches, all while maintaining a lightweight and space-saving profile.

Key features

• High-speed PCIe NVMe interface that accelerates data access and file transfers for smoother performance.
• Compact M.2 2242 form factor allows easy installation in laptops with limited internal space.
• Optimized for ThinkPad E490, E490s, and E590 models to ensure firmware compatibility and thermal efficiency.
• Lightweight design at approximately 5 grams, preserving the portability of your laptop.
• Energy-efficient operation with a single PCIe lane that balances power use and bandwidth.
• One year limited warranty provides reliable support and peace of mind for daily use.

Key specs

• Storage capacity: 512 GB
• Interface: PCIe NVMe
• Form factor: M.2 2242 (42 mm length)
• Read speed: up to 2000 MBps
• Write speed: up to 860 MBps
• Weight: approximately 5 grams
• Warranty: 1 year limited

Compatibility and installation

This SSD is specifically engineered for Lenovo ThinkPad E490, E490s, and E590 laptops, ensuring seamless integration with their hardware and firmware. Its standard M.2 2242 slot compatibility means installation is straightforward and can be completed with basic tools, making it accessible for users looking to upgrade their storage without professional assistance.

Who this is for

This internal SSD is a strong choice for business professionals, students, and remote workers who need faster storage performance without adding bulk to their laptops. It fits well in compact ThinkPad models where space is limited but reliable, high-speed storage is essential for productivity and efficient multitasking.

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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