Hi Mike, I wanted to address your SFP issue. SFPs are incredibly proprietary and so you will need to use one brand for the Meraki side and one brand for the Dell side. It is very possible that there is a Finnesar (just throwing out the first name that comes to the top of my head, this is not an endorsement) that will work in both models but you will need to do some google searching to find a compatible model for both brands. I hope this helps. Kathleen
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