for Sony PSP 1003 2003 3003 - Micro SD to MS Pro Duo Memory Stick Adapter | FPC
Micro SD to Pro Duo Adapter - Supported card types: Micro SD 256MB - 2GB / Micro SDHC 4GB - 32GB Max. - Format Micro SD to FAT32 in your PC before use (Won't work with NTSF formatted cards). - 32GB Micro SD Max.