Fangrui Product Details Dual Slot-combing Two Micro-sd/sdhc Into One Ms Pro Duo. (micro-sd+micro-sd, Micro-sdhc+micro-sdhc, Micro-sd+micro-sdhc). Large Capacity-integrating One Memory Card With Another Into A Memory Stick With Larger Capacity. (support 256m-32g For Every Single Card And The Capacities Of The Inserted Two Can Be The Same Or Different). Expandability-supporting Only One Card Inserted, Giving More Options To Choose To Adjust The Capacity. Reliable Tech-the High Quality Card Ferring Device Decides Output Speed Of The Adapter According To The Speed Of The Inserted Card. Compatibility-effectively Compatible With For Psp And Most Products Of For Sony. Specification: Model : Cr-5400 Os : For Windows For Vista Xp,2000.me,98se,for Mac Os 9.2,for Mac Os X,for Linux Support : Micro-sd 256mb-2gb / Micro-sdhc 4gb -16gb Speed : Super High Read/write Speed Of 10 Mb/s And Up Note: Suit For Most Of The Cameras For Sony,not All For Sony Camera. Data Fer Can Only Be Done With Micro-sd Hc Cards Inserted In Cr-5400. Direct Pc To