The Transcend 256 GB UHS-I U3 Class 10 SD Card provides 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. Record your everyday life Let 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 capabilities Transcend's SDXC/SDHC 300S 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 45MB/s respectively. Built for extremes To 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.