To answer most of your questions this is a great product that every MacBook user should buy no matter how much internal storage you have to have. This rating is based on personal experience with the product.1. In fact, there is just over 128 GB.2 free on the card. It will not unmount when the computer goes to sleep, even during boot.3. It will not unmount on reboot.4. It's barely noticeable in the SD card slot and it just seems like something is blocking the SD card slot. I have a 2013 MacBook Air 13.3 inch. B. a Windows virtualization machine, either a boot camp or one parallel to it. Although the computer recognizes the drive the moment it is inserted, it must be formatted in a Mac OS-only format to take full advantage of it. It is formatted the same as you. format the SSD .MAC OS (Advanced Journal).
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