I have a Galaxy J7 phone. I bought this for it from Amazon:Abacus24-7 64GB micro SD Memory Card [SD Adapter] for Samsung Galaxy S7 Active, Edge, Alpha, A7, Galaxy S5, J7 V, Note 3, Note 4, Note 8, Note Edge, Galaxy S4 and other models.
It's a micro SD card with a larger card labeled "Adapter". I've installed the micro card and transferred files, apps, and photos successfully. What is the larger Adapter card for? I can't find an explanation. People on Amazon say it's for a desktop or laptop. I have this HP laptop bumped up from 2 to 4 gigs, occupying both slots. Please could someone explain to me how I would use this?