Feature: 1. The A1 performance standard enables you to quickly start and run programs for a better smart device experience. 2. Full speed record hd pictures without missing frames, clearly record every moment, faster and more stable transmission speed. 3. Select the best storage particles, strictly ensure the stability and flow of storage, and ensure the service life of memory card. 4. Support mobile phone expansion, efficient and stable. 5. Temperature-proof, shockproof, vibration-proof, and X-ray-proof. Specification: Features: The A1 performance standard enables you to quickly start and run programs for a better smart device experience. Full speed record hd pictures without missing frames, clearly record every moment, faster and more stable transmission speed. Select the best storage particles, strictly ensure the stability and flow of storage, and ensure the service life of memory card. Support mobile phone expansion, efficient and stable. Temperature-proof, shockproof, vibration-proof, and X-ray-proof. Widely compatible with mobile phone, tablet, computer, camera, UAV, dash cam, monitoring device, etc. Specification: Type: TF card Brand: Lenovo Capacity: 32GB/64GB/128GB/256GB/512GB(optional) Speed level: Class 10, A1, U1(32GB); Class 10, A1, U3(64GB-512GB) Read Speed: Up to 90MB/s(32GB), Up to 100MB/s(64GB-512GB) Item size: 1.5 * 1.1 * 0.1cm /0.59 * 0.43 * 0.04in Packing list: 1 * TF card Package List: 1 * TF card