I already have one of these cards that I use in my Sony A77 and it works flawlessly. I take a lot of outdoor scenes as we travel around the country in a 40 foot Allegro Bus Motorhome. We also visit friends and family around the country and take a lot of portrait style and movies with the camera. The card has never once slowed the camera down whether it be in taking JPEG Fine in Sports mode or while shooting video. I highly recommend this card to anyone using a fast camera package. I'm not a professional by any stretch of the imagination but with the Sony A77 and this 32GB Class10 94ms card it makes picture making a lot of fun and you can end up with some really good pictures. Highly recommend!