Laptop Dock Lenovo 40AS0090SA Wired USB 3.2 Gen 1 Type-C 4K Ultra HD Ethernet

The Lenovo ThinkPad USB-C Dock Gen 2 (model 40AS0090SA) is a wired USB-C docking station that expands a compatible laptop's connectivity with USB 3.2 Gen 1 Type-C input, multiple USB-A ports, HDMI output and Gigabit Ethernet. It supports a single vivid 4K display or multiple 1080p screens while also delivering power to charge your notebook and rapid charging for mobile devices.

Advantages

This dock provides a one-cable solution that simplifies workstation setup by combining video output, wired network access and peripheral connectivity. With USB 3.2 Gen 1 Type-A ports and USB 2.0 ports it accommodates both high-speed and legacy USB devices. The integrated HDMI port supports 4K Ultra HD output, and the RJ-45 port delivers Ethernet LAN speeds up to 1000 Mbit/s. Its compact black housing and 0.325 kg weight make it easy to place on a desk or carry between locations.

Suitable for

• Office workstations requiring external monitors and wired network access
• Home offices connecting multiple USB peripherals and external displays
• Presentations and meeting rooms using HDMI display output
• Users who need a compact one-cable docking solution for Lenovo USB-C laptops

Key specifications

• Model: ThinkPad USB-C Dock Gen 2 (40AS0090SA)
• Connectivity: Wired USB-C input (Type-C)
• USB ports: 3 × USB 3.2 Gen 1 (Type-A), 2 × USB 2.0
• Video output: 1 × HDMI, supports up to 4K Ultra HD or multiple 1080p displays
• Ethernet: 1 × RJ-45, up to 1000 Mbit/s
• Compatibility: Windows 10 and Windows 7 (driver/support dependent)
• Color and weight: Black, 0.325 kg

How to use

Connect the dock to your compatible laptop using the USB-C cable. Attach external monitor(s) to the HDMI port and connect wired network via the RJ-45 port. Plug USB devices into the available USB 3.2 Gen 1 and USB 2.0 Type-A ports. If required, install drivers on Windows 10 or Windows 7 according to Lenovo instructions to enable full functionality. Use the laptop charging feature through the dock if your laptop model supports USB-C power delivery.

Recommendations

For stable 4K output and optimal network performance, use high-quality HDMI and Ethernet cables and ensure your laptop's USB-C port supports DisplayPort alt mode and sufficient power delivery. Keep drivers up to date via Lenovo support pages.