I don't think I have any spare M.2 slots but this is interesting | That spare M.2 slot in your PC isn't just for storage, here are 4 clever things you can do with it https://www.howtogeek.com/that-spare-m2-slot-in-your-pc-isnt-just-for-storage-here-are-clever-things-you-can-do-with-it/