Transcend 128 GB High Speed 10 UHS-3 Flash Memory Card 95/60 MB/s (TS128GSDU3) Ideal for Full 1080p HDD, Ultra 2160p HD, 3D and 4K video recording Up to 95/60 MB/s ; Minimum constant 30 Mb/s write speed guaranteed for real-time video recording Supports Ultra High Speed Class 3 specification (U3) Improved camera response for fast-action consecutive shooting Efficient exFAT file system (SDXC) Fully compatible with the SD 4.20 standard. Backwards compatible with the SD 3.0 standard Built-in Error Correcting Code (ECC) to detect and correct transfer errors Supports Content Protection for Recordable Media (CPRM)