Lenovo 40B90000US

Overview

The Lenovo 40B90000US is a USB-C dual display travel dock designed to expand your laptop into a versatile workstation wherever you go. It supports two external 4K monitors at 3840 × 2160 resolution and 60 Hz refresh rate, delivering sharp and smooth visuals through HDMI 2.1 and DisplayPort 1.4 outputs. This compact dock also provides essential connectivity options and power delivery, making it a practical solution for professionals who need reliable performance on the move.

Key features

• Supports dual 4K displays with HDMI 2.1 and DisplayPort 1.4 for high-resolution, fluid visuals
• Includes two USB-C 3.2 Gen 2 ports and one USB-A 3.2 Gen 2 port for fast data transfer and peripheral connections
• RJ45 Gigabit Ethernet port ensures stable wired network access in environments with unreliable Wi-Fi
• Delivers up to 65 W of USB-C power to keep your laptop charged through a single cable
• Lightweight and compact design fits easily into laptop sleeves or backpacks for convenient travel
• Plug-and-play compatibility with Windows 10 and Windows 11 eliminates the need for complex setup

Key specs

• Display support: dual 4K monitors at 3840 × 2160 resolution, 60 Hz refresh rate
• Video outputs: HDMI 2.1 and DisplayPort 1.4
• USB ports: two USB-C 3.2 Gen 2, one USB-A 3.2 Gen 2
• Network: RJ45 Gigabit Ethernet
• Power delivery: up to 65 W via USB-C
• Dimensions: 4.7 × 2.2 × 0.8 inches
• Weight: 4.8 ounces
• Operating system compatibility: Windows 10 and Windows 11

Connectivity and compatibility

This travel dock offers a well-rounded set of ports to cover most connectivity needs while on the road. The two USB-C 3.2 Gen 2 ports provide high-speed data transfer for external drives or webcams, while the USB-A port supports legacy peripherals. The RJ45 Gigabit Ethernet port is especially useful in locations where Wi-Fi is unreliable or unavailable, ensuring a stable and fast internet connection. Its single USB-C cable handles data, video, and power delivery, simplifying your workspace and reducing cable clutter.

Ideal uses and environments

Weighing just 4.8 ounces and measuring under 5 inches in length, this dock is designed for professionals who frequently travel or work in multiple locations. Consultants, hybrid workers, and students will find it easy to carry and quick to set up, turning any compatible laptop into a full workstation. It fits well in hotel rooms, conference centers, classrooms, and home offices where multiple displays and reliable network access are essential.

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