Sony MSMT4G/TQMN 4 GB MS PRO Duo (Mark 2) Memory Stick

Featuring 4GB of memory, compact Memory Stick delivers reliable storage for high-resolution digital photos and video. Minimum write speed is 32Mbps when combined with optimized Memory Stick PRO format-compatible devices. Maximum transfer speed is 20MB per second. The Memory Stick PRO Duo can be used in products compatible with standard-size Memory Stick PRO media.