Sony - SFG128T/T1 128GB SDXC UHS-II TOUGH G Series Memory Card
UHS Speed Class: U3. read, 299MB/sec. write 2 speeds. Up to 300MB/sec. transfer speed and up to 299MB/sec. write speed. 3 UHS-II, class 10, U3 compliant. Fast writing speed excellent for 4K recording and continuous burst mode shooting.