Team 128GB microSDXC UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 80MB/s (TUSDX128GUHS03) Support for UHS-1 ultrahigh-speed bus interface Extreme speeds of up to 80MB/s reading and 20MB/s writing IOPS reaches 500 reading and 150 writing, surpassing the same class ten fold Enough to satisfy the high-speed access requirement of smart phones, tablets and vehicle recorders Includes full-size SDHC/SDXC adapter