5 Pack - 5 MicroSD Cards and 5 Adapters ULTRA FAST: Read speed up to 100MB/s. Write speed up to 30MB/s (varies according to memory size). UHS, U3, Class 10 and A2 speed classes for an optimal smartphone experienceHIGH QUALITY STORAGE: Perfect for high resolution photos, for recording and storing Full HD/4K videos and any other data type [Compatibility] Storage for Laptop, Tablet, PC, Smartphones, Camera, e-Reader. Files, Videos, Music LASTING RELIABILITY: Shockproof, IPX6 waterproof, temperature-proof (-10° to 80°), X-Ray-proof and magnetic-proof Note: Actual storage capacity shown by a device's OS may be less than the capacity indicated on the product label due to different measurement standards. The available storage capacity is higher than 58GB 5-year limited warranty