Originally Posted by byethecrin
Galaxy s3 is advertised as being expandable with a 64gb micro sd card, so I am assuming it's compatible with sdxc! Although at £500/$750 it certainly doesn't meet the in-expensive remit!
On the plus side though, who wants black when you can have an absolutely brand new pebbley colour, surely that's worth 5 ton on its own
SDXC is inherently backward compatible with SDHC 3 readers (basically any SDHC reader manufactured since 2010). They ship formatted exFAT, so you need to reformat them as FAT32...otherwise most if not all modern devices with SDHC (such as the S3 and all the galaxy players) can read SDXC cards after you allow the device to reformat them. Yous imply miss out on some SDXC spec features (such as xfer speeds greater than 104MB/s).
The SDXC spec allows for capacities up to 2TB, but nobody is manufacturing any such device yet. I've only seen 64GB microSDXC so far, and 128GB is only avialable in standard SDXH form factor (which won't fit in a microSD slot).