SanDisk microSD Express Card, 512GB mSD card, Read speeds up to 880 MB/s, Write Speeds up to 650MB/s, Sustained Write 220MB/s, SanDisk QuickFlow Technology, ThermAdapt, UHS-I, U3, C10

READY FOR TOMORROW. Ready for future superspeed products with PCIe-NVMe interfaces and performs at UHS-I speeds when used with microSD UHS-I and UHS-II devices. EXPONENTIALLY FASTER PERFORMANCE. Up to 4.4 times faster read speeds than our fastest microSD UHS-I cards with up to 880MB/s transfer speeds. MASSIVE TIME-SAVER. Transfer 60 minutes of 4K UHD video shot at 30 fps in just less than 70 seconds and 1,000 10MP RAW photos in less than a minute (51.7 seconds) when paired with SanDisk PRO-READER SD Express Dual Card (sold separately). DURABILITY YOU CAN COUNT ON. Cards are waterproof, temperature-proof, humidity-proof, drop-proof, shock-proof, magnetic-proof, x-ray proof, and wear-out proof. HEAT MANAGEMENT REIMAGINED. SanDisk ThermAdapt helps keep devices from overheating with a specially designed enclosure and controller that uses dynamic adaptive thermal management.