SOPHOS FleXi Port - Expansion Module - 10 Gigabit SFP+ x 4

Flexi Port modules allow you to adapt your security appliance to better meet your network connectivity needs. On SG 2xx, 3xx and 4xx appliances, you can select additional modules with 1/10 GbE copper and fiber interfaces to easily extend and upgrade your hardware.
What's more, they're perfectly interchangeable between different models. So if your company's growth requires you to upgrade to a higher appliance model, you can simply take the module you've already purchased and integrate it into your new appliance.