Transcend microSDXC/SDHC 500S memory cards provide the performance and capacity necessary to harness the full power of your UHS-I compliant action camera and drone camera. In addition to incredible transfer speeds, The cards meet UHS video Speed Class 30 (V30) standards, allowing for smooth, uninterrupted 4K video capture. *V30 standard compliance applies only to 16GB-128GB capacities.