ANDROID BLOG Androidnz has confirmed that a 64GB microSDXC card works
in multiple devices including smartphones and tablets.
In general, microSD card slots in today's devices support up to 32GB
of extra storage but despite Sandisk saying otherwise, you can now add
up to 64GB. A Sandisk card has been tried in phones such as the
Samsung Galaxy S II and tablets like the Asus Eee Pad Transformer.
Androidnx said, "Upon inserting the card in my phone I received an
error notification stating that the card was damaged. After a quick
trip to Settings to format the card, the phone recognised the SDXC
card and showed 59.46GB of storage available."