E10G41BFLR Intel X520-LR1 10GB Fiber Adapter Manufacturer Part# E10G41BFLR Product Type: Fiber Optic Card Form Factor: Internal Interfaces/Ports: LC Network Technology: 10GBase-LR Host Interface: PCI Express x8 Information: X520-LR1 Ethernet Server Adapter is the most flexible and scalable ethernet adapter for today's demanding data center environment. Data center network are being pushed to their limits. The escalating deployment of server with multi-core processors and demanding application such as High Performance Computing (HPC), database clusters, and video-on-demand are driving the need for 10 Gigabit connections.