Model Number: SDXCUH-0128G Brand Name: Deolux or Original Key Specifications/Special Features: ● SDXC cards allows larger data storage and optimized performance● Identical in size to regular SD card but are only compatible with SDXC host devices● SDXC cards are not backward compatible with legacy SD format host devices● Form factor: 24 x 32 x 2.1mm● Capacity : 64GB to 128GB● Speed class rating: Class 2: 2Mbps minimum data transfer rate Class 4: 4Mbps minimum data transfer rate Class 6: 6Mbps minimum data transfer rate Class 10: 10Mbps minimum data transfer rateSDXC Logo is a trademark of SD-3C, LLC.