Advanced Ethernet Controller: The Realtek RTL8125 Ethernet Controller is at the heart of this network card, providing advanced features and reliable performance for your networking needs. | Standard Interface Design: Equipped with a single RJ-45 port, this card is designed to connect to standard Ethernet networks with ease. NOT support hot swaping. | Universal PCI Express Compatibility: With a PCI Express 2.1 x1 Lane interface operating at 2.5 G T/s, this card is universally compatible with PCI-E slots, including X1, X4, X8, and X16, ensuring it can fit into a variety of system configurations. | Extensive Operating System Support: Ensures seamless integration with a broad spectrum of operating systems, compatible with Windows 7/8/10/11, MAC OS, Centos/RHEL 6/7/8, Ubuntu 16/18/19/20, Debian 9/10/11 and etc. | Unmatched Customer Support: Your purchase comes with Ipolex's unwavering commitment to customer satisfaction, featuring a 30-Day Free Return policy for hassle-free refunds, a 3-Year Free Warranty protecting against defects and malfunctions, and Lifetime Technical Support for continuous expert assistance, ensuring your peace of mind and the long-term performance of your network card.