TP-Link 10 Gigabit PCI Express Network Adapter(TX401) Arm Your PC with the Latest 10G Speeds PCIe 3.0 Slot to 10 Gigabit Ethernet Network Adapter Upgrade to 10G Networking 10 Gigabit Ethernet reaches blazing-fast data rates up to 10 billion bits per second-10× faster than standard Gigabit Ethernet. It’s a brand-new era for all your bandwidth-intensive tasks from local data transfers to internet access. Local Data Transmissions in Seconds For local connections, a 10G PCIe adapter helps build a lightning fast transport channel between a central server and other working machines in your local network. Local data transmissions will be a breeze for you as you handle bandwidth-intensive tasks easily at your home or office. Versatile, Multi-Speed Compatibility 10GBase-T is backwards compatible with multiple data rates, including 10 Gbps, 5 Gbps, 2.5 Gbps, 1 Gbps, and 100 Mbps Base-T connectivity. The 10G Ethernet port automatically negotiates between higher and lower speed connections, allowing you to upgrade to 10G networking smoothly. QoS Support A Bandwidth Buff for Gaming Quality of Service technology ensures enough bandwidth and avoids network congestion for PC gaming. It delivers prioritized performance for gamers.