SANOXY Dual 2 Slot Micro For SD SDHC TF to Memory Stick MS Card Pro Duo Reader Adapter For PSP Adapter Converter. This is not a Memory Card. Holds 2 cards for super large capacity Get maximum storage capacity with 2 microSDHC or 2 microSD cards. CR-5400 converts 2 microSDHC cards into one MS Pro Duo stick. Card types can be mixed Cards of different capacity and different type can be used concurrently i.e. microSD+microSDHC. The adapter works with only one microSDHC card as well. The second slot can be equipped anytime later. You can exchange the cards and upgrade the max. capacity at will! Supports 2 microSD/microSDHC cards. 2 microSDHC cards of different capacity can be used. If only 1 microSDHC cards is used, it must be inserted into slot#1 in order to work