Mellanox MCX4121A-XCAT ConnectX-4 Lx EN network interface card, 10GbE dual-port SFP28, PCIe3.0 x8, tall bracket 5 2

MCX4121A-XCAT

Since this card supports both 10 and 25GB and is supported by Synology, I get 25Gbps connection with a direct connect cable. That's faster than most 6Gbps and 12Gbps host controllers for an external connection.

5

Mellanox MCX4121A-XCAT ConnectX-4 Lx EN network interface card, 10GbE dual-port SFP28, PCIe3.0 x8, tall bracket 5 2

MCX4121A-XCAT

Great connection to Synology NAS

5