- 64GB MicroSD card- High transmission speed- High adaptability, water and shock resistant, X-ray proof, resistance to high and low temperatures,etc.- Writing speed: 20 Mbps- Reading speed: 90 Mbps- Compatible with devices that support micro SDHC, micro SDXC, micro SDHC UHS-I and micro SDXC UHS-I- Working temperature: -15°C ~ +70°C