BUFFALO LUA4-U3-AGT USB 3.0 high-speed LAN adapter, achieving a maximum communication speed of 1000Mbps. Supports GIGAbit networks. Also compatible with Nintendo Switch. Even PCs without a LAN port can add one via USB connection. Enjoy comfortable, high-speed internet in hotels, on business trips, etc. - Brand: BUFFALO - Connection Type: USB 3.0 - Maximum Speed: 1000Mbps - Supported OS: Windows 10/8.1/8/7/Vista/XP, macOS - Accessories: Setup Guide, LUA Navigator CD Thank you for viewing. I purchased this new a while ago, but ended up not using it and kept it in storage. The top opening of the box is torn due to a failed opening attempt. Otherwise, there are no other issues. Thank you for your consideration.