Specification： Storage Capacity: 16GB 32GB (if you order the one pcs , the package will not include a adapter ) Transfer Speed: 80MB/s(read); 15MB/s(write) Product Dimension: 15*11*1（mm） Working Voltage: 2.7-3.3V Working Temperature: -25℃ to 85℃ Storage Temperature: -40℃ to 85℃ Storage Capacity: 64GB 128GB 256GB with the adapter Transfer Speed: 90 MB/s(read); 30MB/s(write) Product Dimension: 15*11*1（mm） Working Voltage: 2.7-3.3V Working Temperature: -25℃ to 85℃ Storage Temperature: -40℃ to 85℃.
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