Lenovo 4X91D96891

Overview

The Lenovo 4X91D96891 is a USB 3.0 to Ethernet adapter that provides a simple and effective way to connect your laptop or desktop to a wired network. It delivers stable Gigabit Ethernet speeds up to 1000 Mbps, making it suitable for tasks that require reliable and fast internet access, especially in environments where Wi-Fi is unreliable or unavailable. Its compact design and full-size RJ45 connector make it a practical accessory for both mobile and stationary setups.

Key features

• USB 3.0 interface ensures fast and straightforward connection to your device without additional hardware installation
• Supports Gigabit Ethernet for high-speed data transfers, ideal for large files and bandwidth-intensive applications
• Full-size RJ45 connector compatible with standard Ethernet cables for easy integration into existing networks
• LED indicators provide clear feedback on network activity and connection status, helping you monitor connectivity at a glance
• Advanced features like PXE boot, Wake-On-LAN, and MAC pass-through enable remote management and network booting when supported by the host device
• Lightweight and compact design makes it easy to carry and use on the go, perfect for business travelers and remote workers

Key specs

• Interface: USB 3.0
• Network speed: up to 1000 Mbps (Gigabit Ethernet)
• Connector type: full-size RJ45 Ethernet port
• Weight: 0.05 ounces
• LED indicators: network activity and link status
• Supported features: PXE boot, Wake-On-LAN, MAC pass-through (host dependent)

Connectivity and compatibility

This adapter connects via USB 3.0, ensuring compatibility with most modern laptops and desktops that have USB ports. The full-size RJ45 port supports standard Ethernet cables, allowing seamless integration into wired networks. It is especially useful in environments where Wi-Fi signals are weak or unstable, providing a reliable alternative for network access.

Ideal uses and environments

The Lenovo 4X91D96891 fits well in professional settings where stable and fast network connections are critical, such as offices, remote workstations, and business travel scenarios. It is a strong choice for IT professionals who need advanced network features like PXE boot and Wake-On-LAN for remote device management. Its portability also makes it convenient for users who frequently switch between locations but require consistent wired connectivity.

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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