QUMOX 32GB MICRO SD MEMORY CARD CLASS 10 UHS-I 32 GB HighSpeed Write Speed 15MB/S read speed upto 70MB/S QUMOX 32GB Class 10 UHS-I U1 MicroSDHC Write: 15MB/s Read: 70MB/s ( Test by USB 3.0 Card Reader) *speed may vary under different computer and card reader