Transfer rate: Read speed up to 100 MB/s, write speed up to 30 MB/s (the actual data transfer rate of the P500 micro sd card may vary depending on the operating environment and other factors). Product specifications: waterproof, shockproof, temperature resistant, X-ray resistant, anti-static Product Rules: Micro sd card 64GB U3 A1 Class10 Full HD V30 4K shooting Ideal for storing photos, videos, music and applications Compatible models: Smartphones, cameras, recorders, game consoles, Switch, Ps4, tablets, etc. Capacity Note: 1GB = 1,000,000,000 bytes, capacity algorithms vary, some capacity is used to optimize system files, management, and performance, actual available capacity may be less than indicated. Actual capacity is approximately 93% of labeled capacity. Specifications: Capacity 64GB Color: Blue Standard microSD card fat32 Size: 12.3 x 9 x 0.4 cm; 18.1 g OS: Windows XP/7/8/10 or later, Mac OS X 10.5 or later Includes: 64GB x 1 micro memory card Features: IPX7-rated waterproof (can be used underwater to a depth of 1 meter after 24 hours of submersion) Transfer and read speeds: up to 90 MB/sec (600X) File system: FAT32 UHS connector: UHS-I Video Speed Recording: Class 10 (V10) Features: Impact resistant, X-ray resistant, anti-static Note: Actual capacity is based on the labeling of the personal computer/cell phone/camera, etc. Actual capacity is approximately 90%-93% of nominal capacity.