Sony 2 GB Memory Stick PRO Duo Memory Card MSX-M2GS 2 GB storage capacity with 1.85 GB available Minimum write speeds of 15 Mbps on Memory Stick(R) PRO Duo enabled devices optimized with 4-pin parallel interface Increased operating temperature range of -13 F to 185 F for greater durability Included adapter allows compatibility with Memory Stick(R) PRO media enabled devices Backwards compatible with most devices that use Memory Stick(R) PRO Duo media