This workstation-class dock delivers a mammoth 230W of charging over a single proprietary Thunderbolt 4 split cable, aimed at mobile workstations that need more than the usual 100W. It runs 40Gbps Thunderbolt 4 and can drive an 8K@30Hz display or up to four 4K@60Hz screens through its two DisplayPort 1.4, one HDMI 2.1, and one downstream Thunderbolt port. Note its two extra USB-C accessory ports are Thunderbolt 3 (5V/3A), not Thunderbolt 4. Power arrives from a bundled Slim Tip 300W adapter.
Device Information
- Manufacturer
- Lenovo
- Release Year
- 2021
- Model Number
- 40B00300
- Category
- Dock / Hub
Source: manufacturer product page · Last updated: · How we verify port data →
Available Ports
| Connector | Quantity | Power (PD) | Capabilities | Label | Notes |
|---|---|---|---|---|---|
| Thunderbolt 4 (USB-C) | 1 | 230 W | DP Alt Mode Thunderbolt | Thunderbolt 4 host (proprietary split cable) | Upstream host link; up to 230W charging via the Slim Tip split cable |
| Thunderbolt 4 (USB-C) | 1 | 15 W | DP Alt Mode Thunderbolt | Thunderbolt 4 downstream | Downstream Thunderbolt 4 for display/peripheral |
| Thunderbolt 3 (USB-C) | 2 | 15 W | DP Alt Mode Thunderbolt | USB-C (Thunderbolt 3, 5V/3A) | Thunderbolt 3 accessory ports, 15W |
| DisplayPort 1.4 | 2 | — | — | DisplayPort 1.4 | Up to 8K@30Hz or 4K@60Hz |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 2.1 | HDMI 2.1 video output |
| USB Type-A (USB 3.2 Gen 2) | 4 | — | — | USB-A 3.1 Gen 2 (1 always-on) | 10Gbps data; one port is always-on for charging |
| RJ-45 (Gigabit Ethernet) | 1 | — | — | Gigabit Ethernet | Gigabit wired networking; PXE Boot / WOL / MAC address passthrough |
| 3.5mm TRRS (Headset with Mic) | 1 | — | — | 3.5mm combo audio | Headphone/microphone combo jack |
| Kensington Security Slot | 2 | — | — | Kensington + NanoSaver lock slots | One Kensington lock slot and one NanoSaver lock slot |
Notes & Compatibility
Distinct from the ThinkPad Universal Thunderbolt 4 Dock. Connects via a proprietary Thunderbolt 4 passive split cable; power comes from a bundled Slim Tip 300W adapter delivering up to 230W to the workstation (proprietary slim-tip power connector not modeled). The two USB-C accessory ports are Thunderbolt 3 (5V/3A), separate from the one TB4 downstream port.
Common questions
How many ports does the Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) have?
The Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) has 15 ports in total: 2 × Thunderbolt 4 (USB-C), 2 × Thunderbolt 3 (USB-C), 2 × DisplayPort 1.4, 1 × HDMI 2.1 (Type A – Standard), 4 × USB Type-A (USB 3.2 Gen 2), 1 × RJ-45 (Gigabit Ethernet), 1 × 3.5mm TRRS (Headset with Mic) and 2 × Kensington Security Slot.
What kinds of ports does the Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) have?
By connector family, the Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) has 4 Thunderbolt, 4 USB, 2 DisplayPort, 2 Other, 1 HDMI, 1 Network and 1 Audio.
How many USB ports does the Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) have?
The Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) has 4 USB ports: 4 × USB Type-A (USB 3.2 Gen 2). It also has 4 Thunderbolt ports (2 × Thunderbolt 4 (USB-C) and 2 × Thunderbolt 3 (USB-C)), which use the USB-C connector shape.
What video connections does the Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) have?
The Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) has 7 ports that can carry video: 2 × Thunderbolt 4 (USB-C), 2 × Thunderbolt 3 (USB-C), 2 × DisplayPort 1.4 and 1 × HDMI 2.1 (Type A – Standard). Its Thunderbolt 4 (USB-C) and Thunderbolt 3 (USB-C) ports support DisplayPort Alt Mode, so video travels over the USB-C connector itself with a suitable cable or adapter.
How is the Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) powered?
The Lenovo ThinkPad Thunderbolt 4 Workstation Dock (2021) takes power over 2 × Thunderbolt 4 (USB-C) and 2 × Thunderbolt 3 (USB-C). Thunderbolt 4 (USB-C) carries up to 230 W. Thunderbolt 4 (USB-C) carries up to 15 W. Thunderbolt 3 (USB-C) carries up to 15 W.