Lenovo 4Y51D20850

Overview

The Lenovo 4Y51D20850 is a wired compact mouse designed to deliver precise and reliable performance for users who need a versatile pointing device on the go. Its ambidextrous shape fits comfortably in either hand, making it suitable for a wide range of users. Equipped with a blue optical sensor and adjustable DPI up to 2400, it offers accurate tracking and customizable cursor speed for various tasks, whether you are working at a desk or traveling with an ultrabook or notebook.

Key features

• Compact and ambidextrous design that provides comfort for both left- and right-handed users
• Blue optical sensor ensures precise tracking on different surfaces, enhancing usability in diverse environments
• Adjustable DPI up to 2400 allows you to tailor cursor sensitivity to your specific needs, from detailed work to fast navigation
• Four-button layout with two-way scrolling improves control and makes browsing documents or web pages smoother
• Includes a USB-C to USB-A converter for flexible connectivity with a variety of devices without extra adapters
• Durable buttons rated for millions of clicks provide long-lasting reliability for daily use

Key specs

• Connection type: Wired USB-C with USB-A converter
• Sensor type: Blue optical sensor
• Maximum DPI: 2400
• Number of buttons: 4
• Scroll type: Two-way scrolling
• Ambidextrous design: Yes
• Durability: Buttons rated for millions of clicks

Connectivity and compatibility

This mouse connects via USB-C and comes with a USB-A converter, making it compatible with a wide range of laptops and desktops. The plug-and-play design means you can quickly set it up without installing additional drivers, which is especially convenient for users who switch between devices frequently.

Ideal uses and environments

Its compact size and ambidextrous shape make this mouse a strong choice for professionals, students, and mobile users who need a reliable and precise pointing device. It fits well in home offices, classrooms, and remote work setups, especially when paired with ultrabooks or notebooks that benefit from a portable accessory. The adjustable DPI and accurate tracking also support tasks that require both fine control and quick navigation.

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.

Learn more

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.

Learn more

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.

Learn more