Choose screen count and see dock options
Tablet / detachable · Reviewed 8 September 2026 · Documentation-based, not hands-on testing
Dock options for this exact device
Manufacturer guidance
ThinkPad Universal USB-C Dock / 40AY0090US
- 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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF520 (code P1W45M1).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Manufacturer guidance
ThinkPad Universal USB-C Dock v2 / 40B70090US
- 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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF522 (code P1W45M1).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Manufacturer guidance
Lenovo USB-C Universal Business Dock / 40B30090US
- 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
Listed compatible; confirm display modes and charging separately. Source: TP X sheet, AF524 (code x).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF526 (code P1W45M1).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Manufacturer guidance
ThinkPad Universal USB-C Dock (with 135W Power Adapter) / 40AY0135US
- 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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF536 (code P1W45M1).
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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF543 (code P1W45M1).
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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF547 (code P1W45M1).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Manufacturer guidance
ThinkPad Thunderbolt 4 Workstation Dock / 40B00300US
- 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
Network boot, wake from hibernation or power-off, and host MAC-address passthrough are listed. Source: TP X sheet, AF553 (code P1W45M1).
Manufacturer guidance. This is a shortlist, not a test of your complete desk.
Device-specific limits
Lenovo lists 8 dock configurations for machine type 21LL/21LK. 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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