The Intel X520-DA2 10GB Ethernet Server Adapter (E10G42BTDA) is a high-performance network card designed for servers. With a maximum data rate of 10 Gbps, it offers fast and reliable Ethernet connectivity. Featuring two ports and support for SFP interfaces, this adapter is ideal for businesses with demanding networking requirements. Compatible with PCI, PCI Express, and PCI Express x8 ports, the X520-DA2 is a versatile choice for enhancing server performance and network capabilities.