High capacity SD card not working in card slot
I am having issues using a a 200GB MicroSD card in my Macbook Air 13 inch card reader.
SanDisk Ultra 200GB MicroSDCX UHS-I card
Macbook Air 13 inch MID 2012
OSX yosemite 10.10.5
I have had this 200GB card for a week and been using it with my Nifty Minidrive. Previously I had been using a 64GC Micro SD card since Mid 2012 with no issues to date.
Since using this 200GB card a week ago it continuously unmounts itself, becomes corrupt and unreadable, unmountable, and throws all sorts of errors when I try copy data or even make a new folder. I have used disc utility about 20 times to re-mount, verify, repair and get it working. I have had to re-format it 6 times now and tried all different formats and even partitioning it but still having issues. Ive tried to pinpoint the issue by doing the following.
1) I thought the card was faulty at first, however I am not getting any of these issues when I put the 200GB micro SD card into a USB card reader and plug it in via USB.
2) I thought the Nifty Minidrive might be faulty, however the issues don't happen with my 64GB micro SD card.
3) Also the issues still happen when I put the 200GB Micro SD in a Standard SD adapter (actually tried 3 different adapters just to be sure) and put it in the card slot. The 64GB card works fine, but the 200GB card has issues still.
So the only conclusion I can come to is that there are issues with the Macbook Air 13 inch with high capacity cards...
The only question now, is it just my machine or all the built in SD Card readers? I dont know anyone else with one to check though...
Any suggestions, or insight?
I understand this 200GB capacity card is quite new, and I have not been able to find anyone else having issues online. Perhaps I am the first, or its just my machine/card reader that is faulty?
Thanks, Chris.
MacBook Air, OS X Yosemite (10.10.5)