The Intel® X520-DA1 is a single-port 10GbE SFP+ network adapter designed for high-performance networking in enterprise, cloud, and storage environments. Built on the Intel® 82599ES controller and featuring a PCIe 2.0 ×8 interface, it supports 10/1GbE speeds and advanced virtualization features. Ideal for low-latency, high-throughput applications requiring flexible fiber or DAC connectivity.