Conina on 11 August 2019
Don't buy a 512 GB card, they are overpriced (per GB) to the 400 GB cards.
Don't buy an ultrafast "A2" microSD-card (f.e. SanDisk Extreme)... the money you pay for the extra speed is wasted in a Switch. An "A2" SanDisk Extreme ain't faster in a Switch than an "A1" SanDisk Ultra.
I wouldn't recommend using more than one microSD-card in the Switch. 2 x 200 GB aren't cheaper than 1 x 400 GB. And even if they were slightly cheaper on sale, you have to completely power down the Switch to change them, standby ain't good enough. Updates and DLCs for your cartridge games could also be on the wrong card or you have to download them to both cards.
Just buy a 400 GB SanDisk Ultra for $50 - $60.
