Lexar Secure Digital Mini 64Mb. Internal memory: 64 MB, Flash card type: Secure Digital (SD), Read speed: 6 MB/s. Weight: 2 g. Mean time between failures (MTBF): 1000000 h. Operating temperature range (T-T): -25 - 85 °C, Operating relative humidity range: 8 - 95 %, Operating shock: 2000 G