This card did an AMAZING job with holding my music on my phone. Videos played with ease and everything! Highly recommend this card to anyone. The SD card adapter also worked perfectly for me.I use this card on a Samsung Galaxy S2 (Epic 4G Touch, Sprint version). It works just fine on that phone even though the phone specs say it only holds up to 32gb. Just put the card in, go to your settings, fine SD and storage, and then scroll to this card and format the card. Once formatted, it'll work just as any other SD card.