Specification Storage Capacity: 256MB Speed Class :Class 4 Transfer Speed: 10MB/s(read); 4MB/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: 8GB Speed Class :U1 Transfer Speed: 30MB/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 Speed Class :U3 Transfer Speed: 85MB/s(read); 30MB/s(write) Product Dimension: 15*11*1(mm) Working Voltage: 2.7-3.
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