I think with 64GB you're going to have a rough time, even with a large microSD depending a bit what you plan to do with. The shader cache alone will fill it up

I think with 64GB you're going to have a rough time, even with a large microSD depending a bit what you plan to do with. The shader cache alone will fill it up quickly depending on what games you'll play. I'll recommend to update the internal drive if you're going with the 64GB version.