The other day I needed the 32gb sd card I normally keep in my Acekard 2i to replace a failed 16gb I was using in my zipit z2 which absolutely will not work with SDXC cards, the only spare card I had lying around was a 64gb Samsung Evo card that I normally kept in my Asus Windows tablet that I never use so I formatted it to FAT32 with 64k clusters and copied the contents from the 32gb card onto the 64gb card originally expecting the Acekard not to boot but lo and behold it actually works.