Transcend's SDXC/SDHC 300S memory cards provide 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 40MB/s respectively. Store as many as you wish With up to 512GB storage capacity, Transcend's SDXC/SDHC 300S memory cards allow for thousands of photos and hours of Full 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. 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 Provide excellent shock, vibration, bending and twisting resistance. 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.