Features: Support up to 32GB Micro SD memory Compatible with All Micro SD Brands Provides more space for music, videos, photos, games, apps and much more. Converting MicroSD to Memory Stick Pro Duo Combine 2 MicroSD into 1 memory stick pro duo, Example: Insert 2*16GB MICRO SDHC into the adapter, the adapter will indicate 32GB in your device (Depends on your device's supportability, compatible for PSP!) Quickly and easily transform your MicroSD memory to MS Pro Duo standards. Avoid the costly memory stick pro duo, replace it by bargain MicroSDHC If you are a PSP lover, you definitely should have one. Large capacity MicroSDHC can store more games, music and movie, rather than keep deleting files as the limited storage of expensive MS Pro Duo. The adapter has two slots, it will work when: One MicroSD/SDHC inserted (Please Insert To Slot 1 Only) Two MicroSD/SDHC inserted One MciroSD and One MicroSDHC inserted If two cards were inserted, please DO keep 2 cards in the adapter when read and write, DO NOT take them out individually, otherwise, it may cause error Instruction: 1.Insert the MicroSD/SDHC to this adapter 2.Put this adapter into your device(recommended) and format it 3.If you can not format in your device, please format the adapter by card reader 4.Please keep your MicroSD in the adapter, DO NOT read or write MicroSD separately 5.Please format the adapter with memory card before using 6.The adapter work as RAID when two memory cards were inserted Note: This adapter is compatible with most sony devices however, some of the devices(Video Camera) can not support this item due to the firmware limitation