Kent A. Compton
I bought this to expand the limited memory of my Dell Venue Pro. I use it to store MP4 videos and MP3 music and streaming/playing both work very well. Even the description explicitly says &#34;Reformat into file system other than exFAT may cause instability&#34; I'd hope to use it to remap my OneDrive (FKA SkyDrive) folder which requires it being reformatted to NTFS.  The warning is correct--between Windows 8.1, the tablet and the SanDisk MicroSDXC the OS became unstable.  Once I'd reformatted and changed OneDrive's location to it I rebooted Windows 8.1 and Windows 8.1 could not detect the card. I reformatted the card back to exFAT and it works as expected.