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 choice Transcend'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 capabilities Transcend'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 and 90MB/s respectively. They are also compliant with the latest A2 specification for high mobile performance. Store as much as you wish With up to 512GB storage capacity, Transcend's SDXC 340S memory cards allow for thousands of photos and hours of 4K Ultra HD videos to be recorded, meaning you can stay focused on capturing fantastic moments without worrying about running out of storage. 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. RecoveRx software Transcend offers exclusive RecoveRx software, a free data recovery utility that allows you to search deep within a storage device for traces of erased files including digital photos, documents, music and videos.