Transcend TS128GUSDU1 128GB MicroSDXC Class10 UHS-1 Memory Card with Adapter 45 MB/S&nbsp; Supports Ultra high speed Class 1 Specification (U1); Class 10 compliant Up to 45 MB/s Smooth full HD video recording performance Ideal upgrade for smartphones, tablets, and digital cameras Compatible with devices with Micro SD, microSDHC and Micro SDXC slot