The description of CR-5400 Micro SD(HC) to MS Pro Duo Adapter

key features:

CR-5400 Micro SD(HC) to MS Pro Duo Adapter
Holds 2 cards for super large capacity
Card types can be mixed
Freedom of expension and upgrade
Super high read/write speed of 10 MB/s and up
Support card types: MicroSD 256MB - 2GB/ MicroSDHC 4GB -16GB
System requirements: Works on all OS(PSP/Windows/Mac)

4 Big Advantages:
Holds 2 cards for super large capacity
Get maximum storage capacity with 2 microSDHC or 2 microSD cards. CR-5400 converts 2 microSD(HC) cards into one MS Pro Duo stick. You can get twice the capacity at a lower price.
Cards type can be mixed
Cards of different capacity and different type can be used concurrently (i.e. microSD+microSDHC).
Freedom of expansion and upgrade
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!
Super high read/write speeds of 10MB/s and up
CR-5400 is made of high quality components and preserves the original speed of the inserted microSD(HC) cards (when two different types of microSD(HC) cards are used, the slower card sets the speed rate)

Important Note:
Please FORMAT Micro SD cards with CR-5400 adapter by SONY camera or PSP before use the card.(DO NOT FORMAT by PC)
Keep Micro SD cards in CR-5400 adapter all time for data transfer. DO NOT trasnfer data from Micro SD cards without CR-5400 adapter to any other device(PC). It will cause data corrupt.
Most of card readers DO NOT support high capacity Memory Stick (Duo) memory cards. Please use USB cable to transfer from PSP or SONY products to PC or other device.
For customers using PSP® system software version 2.80 or earlier: PSP® systems with system software version 2.80 or earlier do not correctly recognize high-capacity Memory Stick PRO Duo with more than 4 GB of free (recordable) memory space. Please update.
Don't forget to get Two micrsoSD(512M- 2GB) or microSDHC(4GB - 16GB) Card to work with your CR-5400.