Convenient, high performance networking Break through network bandwidth bottlenecks with the dual-port E10G17-F2 10GbE SFP+ add-on card. Featuring CPU offloading, RDMA over Ethernet support1, E10G17-F2 satisfies the demands for high-performance computing on your Synology NAS. 5 year warranty Built to handle intensive workloads, Synology network add-in-cards are backed by Synology's 5 year limited warranty.