Sandisk Memory Stick Duo Adapter Includes Memory Stick Pro Duo Adapter For Universal Compatibility With M2 Slots And Memory Stick Pro Duo Slots Dual Voltage Operation; 1.8V For New Sony Ericsson Mobile Phones, 3.3V For Memory Stick Pro Duo Compatible Devices Controlled Ejection Design Allows For Easier Removal Sony Magicgate Encryption Technology Support Compatibility With All M2 Slotted Mobile Phones As Well As All Memory Stick Pro Duo Slotted Device