1) Capacity: **8MB , **6MB , **2MB , 1GB , 2GB . 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) Inter operable: with SD slot via SD adapter and with TransFlash - enabled devices 5) Dimensions: *1 x *5 x 1mm 6) Speed rating: 8.8 MB/sec. read, 6.5 MB/sec write 7) Operating temperature: 0 to *0C / *2 to **0F 8) Storage temperature: **0 to *5C / *4to **5F . 9) Ultra-portable: extremely small footprint design *0) Compliant with Secure Digital Music Initiative (SDMI).