This is a list of Thunderbolt 3 docking stations which are compatible with Lenovo Carbon X1 Gen9.
| Dock type | Firmware | Connects | Cable | Length | PN | FRU |
|---|---|---|---|---|---|---|
| 40AC | 1.0.25 | Yes ✔ | Lenovo USB-C | 1 meter | SC10S97545 | 03X7610 |
| 40AC | 1.0.25 | Yes ✔ | Lenovo USB-C | 1 meter | SC10Q13458 | 03X7470 |
| 40AC | 1.0.25 | No ❌ | Lenovo USB-C | 1 meter | SC10W67433 | 03X7610 |
| 40AC | 1.0.25 | No ❌ | Lenovo TBT3 | 0.5 meter | SC10M59508 | 03X7134 |
| 40AC | 1.0.25 | No ❌ | Lenovo Thunderbolt 4 | 0.7 meter | SC10W36459 | 5C10V25721 |
| 40AC | 1.0.25 | No ❌ | Deltaco USBC-1053M Rev.6 | 0.4 meter | ||
| 40AC | 1.0.25 | No ❌ | Goobay Art. 67976 | 1 meter | ||
| 40AC | 1.0.25 | No ❌ | Delock (LI)45N0422 | 2 meter | ||
| 40AF | 1.0.32 | Yes ✔ | Lenovo USB-C | 1 meter | SC10W67433 | 03X7610 |
| 40AF | 1.0.32 | Yes ✔ | Lenovo Thunderbolt 4 | 0.7 meter | SC10W36459 | 5C10V25721 |
| 40AF | 1.0.32 | Yes ✔ | Goobay Art. 67976 | 1 meter | ||
| 40AF | 1.0.32 | Yes ✔ | Deltaco USBC-1053M Rev.6 | 0.4 meter | ||
| 40AN | unknown | Yes ✔ | ||||
| 40AS | 1.0.8 | Yes ✔ | ||||
| 40AS | 1.0.6 | Yes ✔ | Lenovo USB-C | 1 meter | SC10S97545 | 03X7610 |