Transcend SDXC/SDHC 300S memory cards provide the performance and capacity needed to take full advantage of the power of a UHS-I compatible digital camera or camcorder. In addition to incredible transfer speeds, the cards meet UHS Video Speed Class 30 (V30) standards, enabling smooth, uninterrupted 4K video recording. V30 compatibility applies to 256GB-1TB capacity cards only. Record your everyday life Let this be the moment to choose the right memory card for your camera. With high capacity and outstanding performance, Transcend SDXC/SDHC 300S memory cards are ideal for capturing the elements of everyday life. Show off your transfer capabilities Transcend SDXC/SDHC 300S memory cards meet both UHS Speed Class 3 (U3) and UHS Video Speed Class 30 (V30) standards for 4K Ultra HD video recording, with read/write speeds of up to 100MB/s and 85MB/s respectively. U3 and V30 compatibility applies only to 256GB-1TB capacity cards. Card specifications 4GB SDHC, C10 / 2D NAND Flash / Sequential read/write: up to 20/10 MB/s 8GB SDHC, C10 / 2D NAND Flash / Serial read/write: up to 20/10 MB/s 16GB SDHC, C10, U1 / Flash / Sequence: 20 - NAND9 MB/s 32GB SDHC, C10, U1 / 3D NAND Flash / Sequential read/write: Up to 100/20 MB/s 64 GB SDXC, C10, U1, V10 / 3D NAND Flash / Serial read/write: Up to 100/20 MB/s SD /1C, U128 MB/s 10 3D NAND Flash / Sequential read/write: Up to 100/25 MB/s 256 GB SDXC, C10, U3, V30 / 3D NAND Flash / sequential read/write: Up to 100/40 MB/s 512 GB SDXC, C10, U3, NWrite / Flash /: Display Rotation. Up to 100/55 MB/s 1TB SDXC, C10, U3, V30 / 3D NAND Flash / sequential read/write: up to 100/85 MB/s Save as many as you want With up to 1TB of storage capacity, Transcend's SDXC/SDHC 300S Full video storage capacity lets you focus on thousands of hours of HD footage and enable thousands of hours of HD memory cards to capture great moments without worrying about running out of storage space. Made for extremes Transcend SD memory cards are tested to withstand extreme conditions for the best performance and stability. They are heat-resistant, waterproof, shockproof, X-ray resistant and static electricity resistant. RecoveRx software Transcend offers the unique RecoveRx software, a free data recovery program that allows you to search deep within your storage device for traces of deleted files, including digital photos, documents, music and videos.