A:AnswerYou do not need to use this card specifically. I would look for a card on a decent sale that has similar speeds. I attached the one I use. normally 80 dollars but on sale for 17.99 at the time of posting.
A:AnswerDepends on the size of the games you get. I have nearly thirty games on my Switch and this is the only memory card I use. If you are worried, you could spring for a bigger card.
A:AnswerDepends on the space of the game. A game in a switch like animal crossing new horizons takes up a lot of space, so opt for a GB you think is enough.
A:AnswerIf the PSVita takes normal microSD cards, it should work. The read/write speeds are pretty good on this card. 100MBs read and 60MBs write. I have the 64GB version.