Docking adapter Gembird A-CMU3-LAN-01 — USB-C 3.2 Gen 1, 1× Gigabit LAN, 3× USB-A, metal housing, grey

The Gembird A-CMU3-LAN-01 is a compact laptop dock that connects via USB Type-C (USB 3.2 Gen 1) to add wired Ethernet and multiple USB-A ports. Constructed with a metal housing and finished in grey, the adapter provides a single RJ-45 Ethernet port supporting 10/100/1000 Mbit/s and three USB 3.2 Gen 1 Type-A downstream ports for peripherals and data transfer. The short integrated cable keeps desktop clutter to a minimum while delivering standard dock functionality.

Advantages

This dock offers gigabit Ethernet over a single RJ-45 port and three high-speed USB 3.2 Gen 1 Type-A ports in a durable metal enclosure. The USB Type-C connection supports fast data transfer and simplifies connection to modern laptops. Its compact size and short cable make it convenient for mobile and space-limited setups while maintaining standard networking compatibility.

Suitable for

• Connecting a laptop to wired Ethernet networks
• Adding USB-A ports for mice, keyboards, external drives and other peripherals
• Use in home offices, meeting rooms, or on-the-go workstations

Key specifications

• Interface to host: USB Type-C (USB 3.2 Gen 1)
• Ethernet: 1 × RJ-45, 10/100/1000 Mbit/s, IEEE 802.1Q and IEEE 802.3az compatible
• Downstream USB: 3 × USB 3.2 Gen 1 Type-A ports
• Enclosure material: metal
• Product colour: grey
• Cable length: 0.17 m (integrated)

How to use

Connect the dock to a laptop's USB-C port using the integrated cable. Plug an Ethernet cable into the RJ-45 port to enable wired network access, and attach USB devices to the Type-A ports as needed. The host system should detect the adapter and install required drivers automatically or prompt for driver installation depending on the operating system.

Recommendations

For best performance, connect the dock to a USB 3.2 Gen 1 capable USB-C port and use a Cat5e or higher Ethernet cable for gigabit speeds. Avoid excessive bending of the short integrated cable and use on a stable surface to reduce mechanical strain.