You could just put it on a local disk? 512GB sdcard is like $15 at Walmart.
Check the price of flash memory again. That $15 card is almost certainly a scam.
Tell me you have no interest in your own data without telling me you have no interest in your own data.
I wanted a forever backup. I'm going to trust Apple and a hard drive.
Check the price of flash memory again. That $15 card is almost certainly a scam.