These are pretty basic, I think this is a good reliable brand for my purposes ie extra storage for camer/tablet. Good value for money.

Used in my security cam so far no problems after formatting in the cam itself

Bought this for my drone and it works well! Value for money!

Brought this card to stick in my Fiio X3II music player. Works well and I haven't noticed any issues with the card.

Used to upgrade my external memory for my phone and does the job well.