As Keyboards get evermore complex, and incorporate higher quality sample voices, (Typically 24bit 96Khz) the more memory is required to store them, (Not forgetting all the Audio and Mp3 files that need to be stored) this is why most keyboards these days come with hard disk drives, as normal solid state memory is just not large enough. (For instance my Wersi Abacus has a 40Gb drive but all the latest models have an 80Gb drive, with 200Gb upgrade option) compared to these hard disks even 2Gb is small.
WORD OF WARNING Not all SD Interfaces can Read or Write to these faster cards, and can also be limited to 512Mb, so before purchasing, check your interface will accept them.
Bill
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English Riviera:
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