Buy a good micro sd card from Jib, they dont sell fake stuff and very fast.
Can use it in your phone or tablet to play files, if you need it as a usb drive just use an adapter.
Class10 and up is fine.
https://www.jib.co.th/web/product/product_list/3/320
Cool, just setting up a discone annetena with a SDR usb receiver (can not transmit) fun to decode sat weather images.
My spare room runs on a small 12v solar back up for printers, tools and small ac, powers the spa below too π