PNY Elite-X microSD Cards are rated Class 10, U3, which guarantees fast transfer speeds allowing for the quick transfer and sharing of content on the go. Perfect for use with the latest smartphones, tablets, action cameras, 360 degree cameras, drones and more. Rated A1 for better app performance on Android devices, PNY Elite-X microSD Cards allow users to run apps faster and directly from the microSD card, saving space on the device's internal memory. PNY Elite-X microSD Cards also feature a V30 Video Speed Class rating, making them ideal for recording 4K Ultra HD content at the higher resolution rate of 4096 x 3072px. Multi-File recording allows for saving and streaming of video from drones, 360 degree cameras and action cameras with video capture modes that simultaneously capture high-quality still pictures. 128GB Storage Capacity.