DescriptionMicro SD Card Features: 1)Capacity: 128MB-8GB. 2)Standardized: complies with SD card specification standards. 3)Versatile: when combined with the included adapter, can be used as a full-size SD card. 4)Interoperable: with SD slot via SD adapter and with TransFlash - enabled devices. 5)Dimensions: 11mm x 15mm x 1mm. 6)Speed rating: 8.8 MB/sec. read, 6.5 MB/sec write. 7)Operating temperature: 0 to 60C/ 32 to 140F. 8)Storage temperature: -20 to 85C / -4to 185F. 9)Ultra-portable: extremely small footprint design. 10)Guaranteed: lifetime warranty.