Bought this to put inside my galaxy note 4. Works well and doesn't suffer from the un-mounting issues that plagued some of the other manufacturers.

Samsung s4 memory card corrupts without warning. Its very slow and suspend, freez system. Turn off the computer/samsung s4 mobile phone.

Major bummer, now i have to incur the additional expense by purchasing a new one. Do yourself a favor and get a card with a stout warranty.

The only thing sony micro sd cards are good for are sony products. Only used it in my samsung galaxy tablet with very little use. Write speed on this card is too slow for their pro avchd codec recording.

Will never buy a sony accessory again. Dead, useless product. Not recomended from this seller.

My complaints are with the packaging and labelling. It was difficult to get the card out without mangling the packaging. Sony memory cards are terrible in my humble opinion.