if the iXpand mini is ‘card 2’ type it should work
if it is ‘card 3’ then it won’t
you can check the card type on the sandisk app under ‘about’ or thereabouts
I RMA my 64gb ixpand mini, they didn’t have a working replacement for iphone X so they gave me the newer iXpand USB 3.0 (the one that ‘bends’ beneath your phone.)