I'm doing a bit of product research for my company as we need to select a special use switch for an industrial customer which requires the use of both Ethernet and Fibre connectivity from the switch. During my investigations I found a few switches that seem to match my needs but only contain 8 or so Ethernet ports and then a multitude of SFP expansion slots.
I did a bit of research to find that it seems I would be allowed to purchase SFP adapters to slide into the expansion slots to allow us to select the appropriate ports but looking for such devices only pulls up more results for switches and not the devices I need.
Is there a different set of terms for these adapters beyond "SFP Expansion Slot" "Adapter" or the like?
Is my understanding of these expansion slots incorrect?