Better speeds: With transfer speeds of up to 170 MB/s, you can capture and move content more quickly in Full HD and 4K UHD. Perfect for drones and action cameras— high speeds rated as Video Speed Class 30 (V30) and UHS Speed Class 3 (U3). Accelerate your workflow with faster application performance—supports A2 app performance class. Durable: The card has undergone rigorous testing and been shown to be x-ray, shock, vibration, temperature, and water resistant for your peace of mind.