The Vantec VLink USB 3.0 To 2.5G Ethernet Adapter with USB HUB A port enables you to add a 2.5 Gigabit Ethernet port using an existing USB Type-A input on your computer or desktop and provides an RJ-45 connector that supports 10/100/1000/2500Mbps Ethernet performance when wireless connectivity is unreliable or inconsistent. When we design this adapter and know this adapter is going to take up one of your precious USB ports, we make sure this adapter comes with an additional USB Type-A port to use with other devices so that you do not lose a port. You can also connect to a USB-C port using an A to C converter (optional). Perfect for laptops with common USB Type-A ports such as the latest Windows 10, OS X, and Linux 3.x or Later.