Special for PSP: Memory Stick Pro Duo 4GB - Entertainment media to enjoy the most of your PSP, transfer games, video and music, view and play on your PSP - with fast read/write speeds, higher capacity and greater durability.
Sony Memory Stick Pro Duo 4GB 4GB MS Flash Memory
-Delivered with a Standard adaptor;
-High speed data transfer;
-Enabling high-resolution moving image recording due to Minimum write speed guarantee;
-Compatible with copyright protection technology ("Magic Gate");
Sony Memory Stick Pro Duo 4GB. Flash card type: MS. Dimensions (WxDxH): 1.22 x 0.787 x 0.0630" (31 x 20 x 1.6 mm)