Compliant with UHS Speed Class 3 (U3) and UHS Video Speed Class 30 (V30) standards Up to 512GB storage capacity Up to 95 Mb/s read; 40 MB/s write Ideal for digital cameras for daily life recording Perfect for a smooth and uninterrupted 4K video capturing Transcend's SDXC/SDHC 300S memory cards provide the performance and capacity necessary to harness the full power of your UHS-I compliant digital camera or camcorder. In addition to incredible transfer speeds, the cards meet UHS Video Speed Class 30 (V30) standards, allowing for smooth, uninterrupted 4K video capture.V30 compliance applies only to 64GB-512GB capacity cards.Record your everyday lifeLet this moment stay by selecting the right memory card for your camera. Featuring high capacities and excellent performance, Transcend's SDXC/SDHC 300S memory cards are great for recording slices of everyday life.Show the transfer capabilitiesTranscend's SDXC/SDHC 300S memory cards meet both the UHS Speed Class 3 (U3) and the UHS Video Speed