takeMS RS-MultiMediaCard Dual Voltage 512 MB Retail. Internal memory: 512 MB, Flash card type: MultiMediaCard (MMC), Read speed: 11 MB/s. Weight: 1.5 g. Mean time between failures (MTBF): 900000 h. Input voltage: 3.3/1.8 V. Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -20 - 85 °C, Operating shock: 1000 G