Choose screen count and see dock options
Laptop · Reviewed 8 September 2026 · Documentation-based, not hands-on testing
Dock options for this exact device
Manufacturer guidance
ThinkPad USB4 Dock 5000 (with 135W Adapter) / 40BF0135US
- Screens
- Confirm combined screen modes
- Charging
- Check the laptop and supplied adapter
- Software
- No DisplayLink for video
- Cables
- Use the dock’s specified host cable and screen cables/adapters matched to its documented outputs.
Full conditions & sources
For rapid charging, connect the laptop adapter directly if its wattage is at least the dock adapter’s wattage. Network boot, wake from hibernation or power-off, and MAC-address passthrough are listed. Source: TP P sheet, AN524 (code 544).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Manufacturer guidance
ThinkPad Universal Thunderbolt 4 Smart Dock / 40B10135US
- Screens
- Confirm combined screen modes
- Charging
- Check the laptop and supplied adapter
- Software
- No DisplayLink for video
- Cables
- Use the dock’s specified host cable and screen cables/adapters matched to its documented outputs.
Full conditions & sources
For rapid charging, connect the laptop adapter directly if its wattage is at least the dock adapter’s wattage. Network boot, wake from hibernation or power-off, and MAC-address passthrough are listed. Source: TP P sheet, AN547 (code 544).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Manufacturer guidance
ThinkPad Universal Thunderbolt 4 Dock / 40B00135US
- Screens
- Confirm combined screen modes
- Charging
- Check the laptop and supplied adapter
- Software
- No DisplayLink for video
- Cables
- Use the dock’s specified host cable and screen cables/adapters matched to its documented outputs.
Full conditions & sources
For rapid charging, connect the laptop adapter directly if its wattage is at least the dock adapter’s wattage. Network boot, wake from hibernation or power-off, and MAC-address passthrough are listed. Source: TP P sheet, AN551 (code 544).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Device-specific limits
Lenovo lists 3 dock configurations for machine type 21KT/21KS. Match the type code before using these results.
Before choosing a dock
- Match the entire device name, including processor, generation and chassis variant.
- Record your screen models, inputs and intended resolutions and refresh rates.
- Confirm those screens work together through the proposed dock outputs.
- Check the supplied power adapter, laptop charging requirement and software permission.
Read the relevant setup guide · Fix a connection problem
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