The Synology E10G21-F2 is a dual-port 10GbE SFP+ network interface card that lets you boost network bandwidth and performance. Handle more operations,users,and high-resolution videos. Easy installation Upgrade Synology systems with faster networking speeds. Thorough validation ensures seamless integration with DSM. Link Aggregation Combine the E10G21-F2’s two 10GbE ports into a Link Aggregation group to enable higher simultaneous throughput,port failover,and load balancing.