Intel X520-DA2 PCI Express Network Interface Card

Intel X520-DA2 PCI Express Network Interface Card is a dual-port 10 Gigabit Ethernet NIC that adds two independent 10 GbE network interfaces to a server or workstation via a PCI Express slot. The card carries model X520-DA2 and part number E10G42BTDA, delivering two 10 GbE connections in a single add-in card suitable for server environments that require additional high-speed connectivity. Each port supports 10 Gigabit Ethernet throughput, enabling higher data transfer rates between servers, storage networks, or other high-speed endpoints compared with traditional GbE adapters. Installed as a PCIe expansion card, it provides scalable bandwidth without occupying onboard networking interfaces, helping hosts accommodate growth and improve network segmentation where needed. The dual-port design supports workloads requiring multiple high-speed links in parallel, making it a practical upgrade for servers handling large file transfers or backups, or other workloads that depend on fast interconnects. With Intel’s networking lineage, the X520-DA2 offers a compact, two-port 10 GbE solution in a single PCI Express card that can be integrated into compatible server hardware.