Only downside, the card is not locked in the cell and thus easily disconnects when plugging / unplugging USB 3.0 devices. There is also the "drop" frequent or it is necessary dextraire the card and reinsert it, sometimes the problem persists.
I still give 3 stars because, as a whole, the card works pretty well.
Highly recommended if you want to update a correct mobile dating back several years.