2.5GbE USB A to Ethernet Adapter allows power users to securely connect to high-speed networks (LAN) from USB 3.1 Type-A Laptop - USB-A 3.0/3.1 | 1x RJ45 | 2.5 Gbps Multi-Gigabit Ethernet | 3 Speed 100Mbps/1G/2.5G | Realtek RTL8156 | NBASE-T/2GBASE-T | 16K Jumbo Frame | WoL | VLAN | USB Powered - NBASE-T NIC for high-speeds over Cat 5e Cables - Supports Windows 7/8.1/10/Server 2008 R2/2012 R2/2016/2019/Linux LTS Kernel 4.19+/MacOS 10.11 to 10.14/VMware ESXi 6.5/6.7/7.0 - 2-Yr Warranty