What is a pen name
You need to format this card to FAT32 before using it in your cell phone, otherwise it will not work. My Samsung Galaxy S3 kept giving me beef until I did so. It's handy to have a laptop sitting around that has a port that can take this card with its adapter in.Luckily I had one such laptop lying around. Otherwise, this card works great and holds quite a bit of space. Giving it 4 stars for the initial grief with formatting it. IIRC I used a tool called Fat32 Format, but it's on my laptop so I haven't checked.