the kn800 is now 13 years old and I don't know if any sites still have styles available in a format that will load into it.

I converted mine years ago, because as you upgrade it pays to re-save the files in the next generation of keyboard, but this means that they will no longer load into the older original model you have changed from.

There were a series of style disks available, these had new patterns to load in, and some had the occasional sound edit, not a new sound, but the kind of edit you can do yourself by using the menus.

If you have a disk drive you can forget about the memory card, it just saved a setup like the 20 you can save yourself on a disk. There were no new instruments or anything like that on the memory card.