The Digi Chip 32GB Speed ProX extreme speed Micro-SDHC Class 10 UHS-3 memory card is an extreme speed memory card made using the highest quality Samsung memory chips. These memory cards are ideal for all mobile devices including mobile phones, tablet pcs, drones, dash cams, action cams and many digital cameras that use the Micro-SD format. They are also UHS-3 spec which stands for Ultra High Speed meaning they are some of the fastest mobile memory cards on the market. They perform to the V30 video standard which means that they can record in full 4K Ultra HD and they are A1 App Performance standard meaning that they have the required sustained write speeds needed for optimised app performance in mobile devices. We also include a full sized SD adaptor so that you can use the memory card in a full sized SD device such as a camera or a computer's memory card reader slot. We offer a lifetime warranty on all Digi-Chip memory card products.