Features: - Perfect for smartphones, tablets, action cameras, drones, etc. - Class 10, U3,V30 rated, ideal for HD photography and 4K Ultra HD video recording. - Read speeds of up to 100MB/s.Random Read up to 1500 IOPS - Expand on-board memory of mobile devices. - Share and store high resolution digital content. - Compatible with microSDHC and microSDXC enabled host devices. Specifications: - Capacity: 256 GB,128 GB,64 GB. - Flash card type: MicroSDXC - Flash memory class: Class 10 - Internal memory type: UHS-I - Read speed, media: 100 MB/s - Protection features: Magnet proof - Shock resistant - Temperature proof - Waterproof