Lenovo 40B00300UK laptop dock/port replicator Wired Thunderbolt 4 Black, Red

The Lenovo 40B00300UK Laptop Dock is a wired Thunderbolt 4 docking station designed for workstation-class laptops. It supports Thunderbolt 4 data transfer speeds up to 40 Gbit/s, video output up to 8K Ultra HD or multiple 4K displays, and delivers a powerful 300W external power supply with USB Power Delivery up to 230W to the connected workstation. The dock includes multiple high-speed USB Type-A ports, a Gigabit Ethernet (RJ-45) port and a compact black-and-red design suited for professional setups.

Advantages

This Thunderbolt 4 dock provides consistent high-bandwidth connectivity for video, data and power. It enables fast 40 Gbit/s data transfers, supports advanced display configurations including 8K output, and supplies up to 230W USB Power Delivery to compatible workstations while the 300W adapter powers demanding setups. The unit also offers a Gigabit Ethernet port and several USB 3.2 Gen 2 Type-A ports for peripheral expansion.

Suitable for

• Professional workstation users who need multiple high-resolution displays
• Users requiring fast data transfer for large files and peripherals
• Office environments needing reliable wired Ethernet and peripheral connectivity
• Creative professionals working with video editing, 3D or CAD applications

Key specifications

• Model: Lenovo 40B00300UK
• Interface: Thunderbolt 4 (wired)
• Maximum data bandwidth: up to 40 Gbit/s
• Video output: up to 8K Ultra HD or multiple 4K displays
• Power: 300W external power supply; USB Power Delivery up to 230W to workstation
• USB ports: 4 × USB 3.2 Gen 2 Type-A
• Ethernet: 1 × Gigabit RJ-45
• Colour: Black, Red
• Weight: 0.45 kg

How to use

Connect the dock to a compatible laptop using a Thunderbolt 4 cable, attach the 300W power adapter to the dock, and then connect displays, Ethernet and peripherals to the appropriate ports. If your workstation supports USB Power Delivery, it will receive up to 230W through the dock. Ensure firmware is up to date for optimal compatibility and silent firmware upgrade support where available.

Recommendations

Use certified Thunderbolt 4 cables and ensure your laptop’s Thunderbolt and power delivery settings are enabled. For multi-display configurations check your laptop GPU and Thunderbolt bandwidth limitations to determine supported resolutions and refresh rates.