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Is there a technical reason why new devices don't support SDXC (high capacity sd cards)? Is it more expensive to implement, with licensing fees and whatnot? We have 64 and 128 gb cards nowadays, and 256 and higher are coming. Huge storage might be a compelling differentiater for a niche product like this one.

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My Jolla phone has a Samsung Pro 64GB microSDXC card in it (Btrfs formatted, "raw" without partitions). It works well.

Samsung seems to call it "64GB microSDHC Pro" in some places though, so the problem here might be terminology and not actual lack of support.

I can't see any reason why the tablet wouldn't support such a card.

The specs say "up to 32gb", hence my question. But that's great news that 64gb works. Would 128 work as well?

The operating system has to support the exFAT file system. I imagine that's the main barrier -- you have to license the exFAT technology from Microsoft.

You can take an SDXC card and format it as FAT32 and it'll work -- of course you'll still face the limitations of FAT32 as far as file size, etc.

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