Product Overview:

The UGREEN USB 3.0 to RJ45 Gigabit Ethernet Adapter (Model CM209) is a compact, high-performance networking accessory designed to provide fast, stable, and reliable wired internet connections for laptops, desktops, and other USB-enabled devices. It’s an ideal solution for users experiencing unstable Wi-Fi signals, network speed limitations, or devices without built-in Ethernet ports.

High-Speed Gigabit Network Connectivity

Equipped with a Gigabit Ethernet port (10/100/1000 Mbps), the CM209 allows you to enjoy ultra-fast and stable wired network performance. It ensures smoother video streaming, faster file transfers, low-latency online gaming, and more reliable connections for remote work and large data uploads. Compared to traditional Wi-Fi, the wired connection provided by this adapter delivers a consistent, interference-free experience.

USB 3.0 Interface for Maximum Performance

The UGREEN CM209 utilizes USB 3.0 technology, supporting data transfer rates up to 5Gbps—ten times faster than USB 2.0. This ensures that your Gigabit Ethernet connection runs at full capacity without bottlenecks. It is also backward-compatible with USB 2.0 and USB 1.1 ports, offering broad compatibility for older devices without sacrificing reliability.

Wide Compatibility Across Devices and Systems

Designed for versatility, this adapter supports a broad range of operating systems including Windows 11/10/8.1/8/7, macOS, Linux, and Chrome OS. It works seamlessly with laptops, desktop PCs, tablets, and even some gaming consoles that support USB Ethernet connections. It’s a true plug-and-play solution—no additional drivers are required for most modern OS versions.

Compact and Durable Design

The UGREEN CM209 features a sleek, lightweight, and portable design, making it easy to carry in your laptop bag or pocket. The adapter’s durable aluminum shell not only enhances heat dissipation but also offers excellent protection against wear and tear. Its anti-slip texture ensures a secure grip, while the high-quality cable construction resists bending and fraying over time.

Ideal for Modern Ultrabooks and Devices Without Ethernet Ports

Many slim laptops and ultrabooks today, such as MacBook Air, Dell XPS, and HP Spectre, lack built-in Ethernet ports. The CM209 bridges that gap, offering a reliable wired connection when working from offices, universities, or remote locations. Whether you’re a gamer, content creator, or professional user, this adapter guarantees consistent network performance without relying on Wi-Fi.

Plug and Play Convenience

The UGREEN CM209 is built for plug-and-play simplicity. Just connect it to your USB port and RJ45 cable—no software installation or configuration is needed (on supported systems). The adapter automatically recognizes network settings and establishes a secure wired connection instantly, saving time and simplifying setup for users on the go.

Energy Efficient and Stable Connection

Using advanced power management and chipset technology, the CM209 minimizes power consumption while maintaining strong signal stability. Its built-in AX88179A chipset ensures seamless compatibility, faster connection negotiation, and a low-latency data stream, making it ideal for professional applications and heavy network workloads.

General Specifications:

• Brand: UGREEN

• Model: CM209

• Interface: USB 3.0 (backward compatible with USB 2.0/1.1)

• Network Speed: 10/100/1000 Mbps Gigabit Ethernet

• Chipset: AX88179A

• Material: Aluminum alloy housing

• Compatibility: Windows, macOS, Linux, Chrome OS

• Features: Plug & Play, compact design, energy efficient

• Cable Length: Approx. 10 cm

• Color: Space Grey

The UGREEN USB 3.0 to RJ45 Gigabit Ethernet Adapter – CM209 is a powerful, compact, and efficient solution for anyone seeking faster and more stable wired internet. With its plug-and-play convenience, universal compatibility, and Gigabit performance, it’s a must-have accessory for professionals, gamers, and anyone looking to maximize their network reliability.