I'm fairly sure that no benefit in file transfer speed will be achieved by using a Hi-speed SD card, in any of the KN series keyboards. The speed limitation is imposed by the KN operating system - not the performance of the SD card.... Save your cash

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Willum
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Willum

After silence, that which comes nearest to expressing the inexpressible is Music.
Aldous Huxley
( especially when the music is played on a KN7000....)