Sony MSH-M128A 128MB Memory Stick DuoExpand Your Storage with Sony Memory Stick Duo The Sony Duo MSH M128A is a compact 128 MB Memory Stick designed for small digital devices. Ideal for expanding the storage of your compatible devices, it ensures you can capture and store your important data with ease. Capacity: 128 MB (123 MB available storage) Type: Memory Stick Duo Compatibility: Compatible with standard size Memory Stick media Transfer Speed: Up to 100 Mbps