Which card do you use with your new fuji x100s?
Whichever class 10 SD cards that are on sale when I need to buy one. I have a mixed case of cards. I’ve had name brand cards fail and generic cards fail. I have zero brand loyalty these days. I don’t think I can actually care less about a brand of memory cards. I was once into Lexar UDMA CF cards because they supposedly were made to be used with their UDMA card readers but then I found any card in the same speed class worked just as quickly as a Lexar card. I still like my daisy chainable Lexar CF card readers though.