Lenovo 40A90090DK laptop dock/port replicator Wired USB 3.2 Gen 1 (3.1 Gen 1) Type-C Black

The Lenovo 40A90090DK Docking Station expands laptop connectivity through a wired USB 3.2 Gen 1 Type-C connection, enabling faster file transfers and stable peripheral links. Compact and lightweight, it adds multiple USB-A ports, legacy VGA video output and a Gigabit Ethernet port while keeping a minimal desktop footprint. The unit supports a maximum digital resolution up to 3840 x 2160 pixels and includes a 3.5 mm headphone jack for audio output. Its black housing and small dimensions (171 mm x 80 mm x 32.5 mm) make it suitable for workspace setups where portability and additional ports are required.

Advantages

The docking station provides wired USB 3.2 Gen 1 Type-C connectivity for up to 1000 Mbit/s data rate and multiple USB-A ports for connecting mice, keyboards or external drives. An integrated RJ-45 port delivers a reliable wired network connection, and VGA output supports connection to older displays and projectors. Its compact size and light weight make it easy to carry between locations and to fit on crowded desks. The inclusion of a 3.5 mm headphone jack allows direct connection of headsets or speakers without using laptop ports.

Suitable for

• Expanding ports on ultraportable laptops with limited I/O
• Connecting to wired office networks for stable internet and file sharing
• Using legacy VGA projectors and external monitors
• Attaching multiple USB peripherals such as keyboards, mice and external drives
• Mobile professionals who need a compact docking solution for travel between workspaces

Key specifications

• Host interface: USB 3.2 Gen 1 Type-C (wired)
• Data rate: up to 1000 Mbit/s
• Video output: VGA (analog) and digital support up to 3840 x 2160 pixels
• USB ports: 3 × USB 3.2 Gen 1 Type-A, 2 × USB 2.0
• Network: 1 × Gigabit Ethernet (RJ-45)
• Audio: 3.5 mm headphone jack
• Dimensions: 171 mm × 80 mm × 32.5 mm
• Weight: 0.29 kg
• Colour: Black

How to use

Connect the docking station to your laptop using the USB Type-C cable and allow the host system to detect the device; most modern operating systems will install required drivers automatically or prompt for driver setup. Plug your monitor or projector into the VGA port and attach wired network cable to the RJ-45 connector for a stable internet connection. Use the USB-A ports for keyboards, mice, printers or external storage and connect headphones or speakers to the 3.5 mm jack. Verify display settings on your laptop to select the desired resolution and extended or mirrored display mode.

Recommendations

For reliable video output at higher resolutions, ensure your laptop’s USB-C port supports video output (DisplayPort Alt Mode) and set the display resolution in the operating system. To maximize network performance, use a Cat5e or higher Ethernet cable. Keep drivers up to date for best compatibility with connected peripherals.