It sounds like you're looking for a USB to LAN Gigabit Ethernet adapter that supports 10/100/1000 Mbps speeds. These adapters allow you to connect a device that has a USB port (like a laptop or desktop without a built-in Ethernet port) to a wired Ethernet network.

Here are some key features you'd want to look for in an original or high-quality adapter:

1. USB 3.0 or 3.1 Support: Ensure the adapter is USB 3.0 or 3.1 for optimal performance, especially for gigabit speeds.
2. Chipset: Look for well-known chipsets like Realtek or AX88772 as these tend to offer good performance and stability.
3. Compatibility: Ensure it's compatible with your operating system (Windows, macOS, Linux, etc.).
4. Speed: Make sure it explicitly states 10/100/1000 Mbps (Gigabit Ethernet).

Popular brands for these types of adapters include Anker, TP-Link, UGREEN, and Cable Matters.

Would you like help finding a specific brand or model?