The Intel X520-SR2 10Gb 10Gbe 10 Gigabit Network Adapter NIC is a high-performance plug-in card with 2 ports, designed for wired network connections. It offers a maximum data rate of 10 Gbps and is compatible with a universal range of brands and products. This NIC features both Ethernet and SFP external interfaces, making it versatile for various networking needs. With its reliable Intel brand, PCI and PCI Express x8 compatibility, and internal SFP interfaces, this network adapter is a top choice for enhancing network connectivity in computers and server systems.