PNY Compact Flash Optima 8GB . Internal memory: 8192 MB, Flash card type: CompactFlash (CF), Read speed: 17 MB/s. Weight: 11.3 g. Mean time between failures (MTBF): 1000000 h. Input voltage: 3.3 - 5 V. Operating temperature range (T-T): 0 - 70 °C, Storage temperature range (T-T): -20 - 85 °C, Operating shock: 2000 G