Transcend's SDXC/SDHC 500S 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 UHS Video Speed Class 30 (V30)-compliant, allowing for smooth, uninterrupted 4K video capture. The professional's choice Transcend'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. Transfer capabilities Transcend'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. Note: U3 and V30 compliance applies to only 64GB-256GB capacity cards. Built for extremes To deliver the best performance and stability, Transcend's SD memory cards are tested to withstand extreme conditions. Waterproof: meet JIS IPX7 standards that can withstand immersion in 1 meter of water for up to 30 minutes. Temperature proof: perform in temperature extremes from -25°C to 85°C. Static proof: meet EMC IEC61000-4-2 standards and withstand static electricity. X-ray proof: meet the ISO7816-1 standard and are immune to airport X-rays. Shock proof: excellent shock and vibration tolerance RecoveRx software Transcend cards includes the 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.