Full Size Extreme Pro SD Memory Card 32GB 64GB 128GB 256GB 512 GB SDXC Class 10
64GB,128GB,256GB,512GB -Class 10-SDXC. 4.32GB,64GB,128GB,256GB,512GB Storage Size. SD card speed is greatly affected by card reader, adapter, USB port etc. Low quality device will 100% slow down card speed.