UGREEN CM111 USB 3.0 to RJ45 Gigabit Ethernet Adapter - Black

For those who demand a stable, high-speed wired connection on devices without a built-in Ethernet port, the UGREEN CM111 delivers reliable Gigabit networking through a single USB 3.0 port. Unlike many compact adapters that rely on generic chipsets, this model uses the proven Realtek RTL8153 controller, ensuring broad compatibility and consistent performance across Windows, macOS, Linux, and Chrome OS.

Highlights

• USB 3.0 Type-A male to RJ45 female Gigabit Ethernet adapter
• Supports 10/100/1000 Mbps network speeds with auto-negotiation
• Backward compatible with USB 2.0 and USB 1.1 ports
• Realtek RTL8153 chipset for reliable, driver-free operation on most systems
• Wake-on-LAN, full/half duplex, Auto MDIX, and 9K jumbo frame support
• Compact, lightweight design with 10 cm integrated cable

In daily use

Plug the adapter into any USB-A port and connect an Ethernet cable for instant access to a wired network. The USB 3.0 interface provides up to 5 Gbps data transfer, eliminating bottlenecks for Gigabit Ethernet. Bus-powered operation means no external power supply is needed, while the link and activity LEDs give clear status at a glance. The 10 cm cable offers flexibility without adding bulk, making it ideal for travel or tight desk setups.

Full specifications

• Host interface: USB 3.0 Type-A male
• Network interface: RJ45 female
• Ethernet speed: 10/100/1000 Mbps (Gigabit)
• USB standard: USB 3.0 (USB 3.1 Gen 1 / USB 3.2 Gen 1)
• Backward compatibility: USB 2.0, USB 1.1
• Max USB data transfer rate: 5 Gbps
• Chipset: Realtek RTL8153
• Network standards: IEEE 802.3, 802.3u, 802.3ab
• Features: Wake-on-LAN (WoL), Full Duplex, Half Duplex, Auto MDIX, Jumbo Frames (up to 9K)
• OS compatibility: Windows 11/10/8.1/8/7/Vista/XP, macOS, Linux, Chrome OS
• Power source: USB Bus-powered
• LED indicators: Link and Activity LEDs
• Housing material: ABS
• Colour: Black
• Integrated cable length: 10 cm
• Driver: Plug & Play for most modern OS
• Certifications: CE, FCC, RoHS

Final note

With its robust chipset and driver-free installation, the UGREEN CM111 is a dependable choice for adding Gigabit Ethernet to any USB-A device, whether for work, gaming, or streaming.