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Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
Lenovo 40B00135US ThinkPad Thunderbolt 4 Dock
Overview
The Lenovo 40B00135US is the US-market variant of the ThinkPad Thunderbolt 4 Dock — a single-cable docking solution designed for ThinkPad users who need to consolidate peripherals, displays, and network connections at a fixed workstation without swapping cables each time they sit down. Where earlier ThinkPad docks required proprietary mechanical connectors, the Thunderbolt 4 interface on the 40B00135US runs everything — video, data, and power delivery to the host — over one cable, keeping desk setups clean and hot-plug capable.
Compatibility
The 40B00135US is built for ThinkPad laptops equipped with a Thunderbolt 4 port. Thunderbolt 4 is backward-compatible with Thunderbolt 3 hosts at reduced capability, and with USB4 hosts depending on the system's firmware support — verify compatibility against Lenovo's official ThinkPad compatibility matrix before ordering, as not every ThinkPad generation or configuration is supported. This dock is not compatible with non-ThinkPad systems or ThinkPad models that carry only USB-C (non-Thunderbolt) ports.
For enterprise deployments, confirm your organization's ThinkPad model year and port specification against Lenovo's published supported-system list. Mixed fleets with both Thunderbolt 3 and Thunderbolt 4 ThinkPads should validate each host model individually — power delivery levels and display output counts may vary by host generation.
Installation Notes
Connection is made via the included Thunderbolt 4 upstream cable between the dock and the host ThinkPad. No additional drivers are required on most current Windows configurations — firmware updates for the dock may be distributed through Lenovo Vantage or the Lenovo Commercial Vantage application, and keeping dock firmware current is recommended for stability in managed enterprise environments. Ensure the installation surface provides adequate ventilation around the unit during sustained load.
Lenovo TP TBT 4 Dock-us - 40B00135US
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