Cisco - expansion module - 25 Gigabit Ethernet x 2

The Cisco Expansion Module has two 25-GbE SFP28 module slots. This plug-in module enables the Cisco Catalyst 9300 Series switches to support interface speeds of up to 25 Gb. The ports also support SFP and SFP+ modules for 1 GbE and 10 GbE interfaces.