PNY Compact Flash Optima 2GB . Internal memory: 2048 MB, Flash card type: CompactFlash (CF), Read speed: 17 MB/s. Weight: 11.3 g. Operating temperature range (T-T): 0 - 75 °C, Storage temperature range (T-T): -20 - 85 °C, Operating relative humidity range: 0 - 95 %