I love SanDisk storage and got this for my tablet's MicroSD slot -- it works flawlessly and doubled my tablet's storage with no fuss. The performance has been snappy enough for my needs and I can copy things into and off of it very easily. Since ASUS tablets are known to slow down if their main storage gets too full, this is really useful for giving me a place to offload things to, like apps that I don't want to download again but want to keep on hand, media files, my ebook collection, more music, etc.