Features: Adopt U3 A1 V30 speed standard, the reading speed up to 100MB/s, can transmit photos and videos to your computer quickly. Support HD 1080P, 3D and 4K video recording and playback. Adopt high quality storage unit, strictly guarantee the stability and smoothness of data transmission, provide long service life. Suitable for complex outdoor environment, waterproof, temperature-resistant, shockproof, antimagnetic, X-ray proof. Suitable for tablets or smartphones, convenient to download or save your favorite media files, including top-quality movies, photos and songs. Widely compatible with various devices with micro SD card slots, including smartphones, driving recorders, GPS navigators, digital cameras and other devices. Specification: Type: TF card : Lexar Model: 633x Capacity: 32GB/64GB/128GB/256GB/512GB(optional) Speed level: Class10, U1(32GB), U3(64GB-512GB), A1(32GB-256GB), A2(512GB), V10(32GB), V30(64GB-512GB) Reading/writing speed: 95M/20M(32GB), 95M/45M(64GB), 100M/45M(128GB-256GB), 100M/70M(512GB) Working temperature: 0~70 Storage temperature: -25~85 Item size: 1.5 * 1.1 * 0.1cm /0.59 * 0.43 * 0.04in Item weight: 2g/0.07oz Packing list: 1 * TF card