Sony Memory Stick PRO Duo 16GB. Internal memory: 16384 MB, Flash card type: CompactFlash (CF), Write speed: 32 MB/s. Weight: 2 g, Width: 31 mm, Depth: 1.6 mm. Power consumption (write): 100 mA, Power consumption (read): 100 mA, Input voltage: 2.7 - 3.6 V. Operating temperature range (T-T): -25 - 85 °C