Lexar MSDP512-40-331 512MB Platinum Memory Stick PRO Duo (Retail Package) 512MB storage capacity Speed rated at 40X (6MB/s, 48Mbps) 100% compatible with Memory Stick PRO Duo devices MagicGate copyright protection technology provised secure transfer and playback of copyrighted content such as digital music, video and games Included adapter allows compatibility with Memory Stick PRO media-enabled devices