256 GB SDXC UHS-I Class 3 (U3) V30 160 MB/s A2 Shock resistant, Static proof, Temperature proof, Waterproof, X-ray proof Black Transcend's SDXC 340S memory cards provide 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 Video Speed Class 30 (V30)-compliant, allowing for smooth, uninterrupted 4K video capture.The professional's choiceTranscend's SDXC 340S memory cards are manufactured with top-tier 3D NAND flash memory for great reliability. The cards are ideal for use with advanced camcorders and DSLR cameras, offering professional photographers and videographers impressive transfer rates to shoot in fast-action burst mode without dropping frames.Show the transfer capabilitiesTranscend's SDXC 340S memory cards meet both the UHS Speed Class 3 (U3) and the Video Speed Class 30 (V30) standards for 4K Ultra HD video recordings, with read/write speeds of up to 160MB/s