FeaturesCapacity: 256 GBUHS Speed Class 3Read speed: Up to 95 MB/sWrite speed: Up to 60 MB/sTemperature resistant, waterproof, shock proof, X-ray proof & static proofThe Transcend 256 GB UHS-I U3 Class 10 SD Memory Card provides the performance and capacity necessary to harness the full power of your UHS-I compliant DSLR cameras and camcorders. In addition to incredible transfer speeds, the cards are UHS Video Speed Class 30 (V30)-compliant, allowing for smooth, uninterrupted 4K video capture.The professional\'s choiceTranscend\'s SDXC/SDHC 500S memory cards are manufactured with top-tier MLC NAND flash memory, making them durable and reliable. The cards are ideal for use with advanced camcorders and DSLR cameras, offering professional photographers and videographers impressive transfer rates and top-quality video recording without dropping frames.Show the transfer capabilitiesTranscend\'s SDXC/SDHC 500S memory cards meet both the UHS Speed Class 3 (U3) and the UHS Video Speed Class 30 (V30) standards for 4K Ultra HD video recordings, with read/write speeds of up to 95MB/s and 60MB/s respectively.Built for extremesTo deliver the best performance and stability, Transcend\'s SD memory cards are tested to withstand extreme conditions. They are temperature resistant, waterproof, shock proof, X-ray proof, and static proof.