According to this page https://infohub.delltechnologies.com/en-us/l/dell-unity-xt-introduction-to-the-platform/i-o-module-options-380-f-480-f-680-f-880-f/ "The 25GbE Optical I/O module runs at a fixed speed of 25Gbps given it is using 25Gb SFPs". When it says "SFPs" does it mean SFP28? In summary, I would like to know if I can use SFP28 transceivers in a Unity XT380 to be connected to an S5248F-ON switch.