The PNY Elite-X microSD card is rated Class 10, U3, which guarantees fast transfer speeds so you can quickly transfer and share your content while you're on the go. It is perfect for use with the latest smartphones, tablets, action cameras, 360~ cameras, drones and more. With the expanded usage of SD memory cards for storing applications and application data, there is a growing need for a combination of random and sequential performance levels. This demand becomes even stronger with the introduction of Android's Adopted Storage Device capability. Rated A1 for better app performance on Android devices, PNY Elite-X allows users to run apps faster and directly from the microSD card, saving more space on smartphones. PNY Elite-X also features V30 Video Speed Class, ideal for recording 4K Ultra HD content at higher resolution rate of 4096x3072(pix). Multi-File recording enabled to allow for saving/streaming video from drones, 360~ cameras and action cameras. Video capture modes that simultaneously capture high-quality still pictures.