Good cards for shooting photos. Not the quickest when saving photos especially when using continuous / burst mode. But I can live with that. One concern. Ive noticed with the large sd cards is that sometimes the contacts are pushed upwards. Not sure whether this is the card, the computer sd slot or the camera sd slot that is responsible. I've started buying micro sd cards now so if a contact is damaged it doesn't affect the card just the adapter. A lot cheaper to replace the adapter than the actual card.