The new expansion card for Xbox Series X

Hello.

I saw that seagate is coming out with a new Expansion Card for the Series X and it helps optimize more for games. And I also saw that current external drives will work for the new systems as well. But it won’t deliever the same performance as the new card.
My question or questions are is there a way to transfer my games that I have saved for my current Seagate hard drive into the new expansion card or is that something I have to purchace to do the transfer of data?

:)