UGREEN USB-A to RJ45 2.5G Ethernet Adapter (25051)
Upgrade your wired network connection with the UGREEN USB-A to RJ45 2.5G Ethernet Adapter (25051). Designed for laptops, desktops, mini PCs, NAS devices, and gaming systems, this USB 3.0 to Ethernet adapter delivers ultra-fast network speeds up to 2.5Gbps, making it ideal for high-speed internet, file transfers, online gaming, video conferencing, and 4K streaming. The adapter is powered by the reliable Realtek RTL8156BG chipset and supports Plug & Play functionality on most modern operating systems.
Key Features
✔ Ultra-fast 2.5 Gigabit Ethernet connectivity up to 2500Mbps
✔ Backward compatible with 1000Mbps, 100Mbps, and 10Mbps networks
✔ High-performance Realtek RTL8156BG chipset for stable data transmission
✔ USB 3.0 Type-A interface for maximum throughput
✔ Premium aluminum alloy housing for better heat dissipation
✔ Plug & Play support for Windows, macOS, Linux, and ChromeOS
✔ Compact and portable design for travel and office use
✔ LED indicators for network and activity status
✔ Ideal for laptops without built-in Ethernet ports, NAS systems, mini PCs, and gaming devices
Technical Specifications
| Specification | Details |
|---|---|
| Brand | UGREEN |
| Model | 25051 |
| Product Series | CM648 |
| Interface | USB 3.0 Type-A |
| Network Port | RJ45 Ethernet |
| Maximum Speed | 2.5Gbps |
| Supported Speeds | 10/100/1000/2500 Mbps |
| Chipset | Realtek RTL8156BG |
| Material | Aluminum Alloy |
| Compatibility | Windows, macOS, Linux, ChromeOS |
| Plug & Play | Yes |
| Color | Silver Grey |
Why Choose UGREEN 25051?
The UGREEN 25051 is the perfect solution when your laptop or desktop lacks a Gigabit Ethernet port or when you need faster and more stable wired connectivity than Wi-Fi. Its 2.5Gbps capability supports modern high-speed networks while remaining compatible with older Ethernet standards. The durable aluminum construction helps maintain stable performance during extended usage.
Applications
- High-speed office networking
- NAS connectivity
- Online gaming
- Video conferencing
- 4K/8K media streaming
- Data backup and file transfers
- Work-from-home setups
- Laptop Ethernet expansion
FAQ Section
Does the UGREEN 25051 support 2.5 Gigabit Ethernet?
Yes, it supports network speeds up to 2.5Gbps (2500Mbps) when connected to compatible networking equipment.
Is the UGREEN 25051 Plug & Play?
Yes, it supports Plug & Play functionality on most modern Windows, macOS, Linux, and ChromeOS systems.
Which chipset is used in the UGREEN 25051?
The adapter uses the Realtek RTL8156BG chipset for reliable and efficient 2.5Gb Ethernet performance.
Can I use it with a NAS device?
Yes, it is compatible with many NAS systems, laptops, desktops, mini PCs, and gaming devices that support USB Ethernet adapters.







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