Lenovo ThinkPad USB 3.0 Ethernet Adapter (Black)

Overview

The Lenovo 4X90S91830 is a USB 3.0 to Ethernet adapter designed to provide a fast and dependable wired network connection for your laptop or desktop. It supports data transfer speeds up to 1 Gbps, making it well-suited for activities like transferring large files, streaming high-quality video, or performing system imaging where a stable and quick connection is essential. This external adapter connects through a SuperSpeed USB 3.0 port, allowing you to add Ethernet capability to devices without a built-in port or when Wi-Fi is unreliable. Its lightweight and portable design fits naturally into the workflow of professionals who need consistent network access on the go.

Key features

• Supports data transfer speeds up to 1 Gbps for fast and reliable wired connections
• Connects via SuperSpeed USB 3.0 for easy plug-and-play setup without additional drivers
• Compatible with Gigabit Ethernet (1000Base-T), Fast Ethernet (100Base-TX), and standard Ethernet (10Base-T) protocols
• External and lightweight design makes it easy to carry and use in various locations
• Works with multiple types of Ethernet cabling to adapt to different network infrastructures
• Classic black color blends seamlessly with most laptops and desktops

Key specs

• Interface: USB 3.0 SuperSpeed
• Maximum data transfer speed: 1 Gbps
• Supported Ethernet standards: 1000Base-T, 100Base-TX, 10Base-T
• Color: Black
• Form factor: External adapter

Connectivity and compatibility

This adapter is designed to work with any laptop or desktop that has a USB 3.0 port, providing a reliable wired network connection where Wi-Fi may be unstable or unavailable. It supports a wide range of Ethernet standards, ensuring compatibility with most modern and legacy network setups. Whether you are connecting in an office environment, at home, or on the road, it offers a straightforward way to access wired networks without internal hardware upgrades.

Ideal uses and environments

The Lenovo USB 3.0 Ethernet adapter is a strong choice for professionals who travel frequently or work remotely and require a stable internet connection. It fits well in home offices, corporate settings, and any location where Wi-Fi signals are weak or congested. This adapter is also useful for IT technicians and system administrators who need quick access to wired networks for tasks like system imaging or large file transfers.