Memory Stick Duo adaptor for Memory Stick and Memory Stick Pro

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Now - that being said, CSO compressed games are far from unplayable and in most cases won't have you twiddling your thumbs either. Additionally, all my tests were done with MicroSD cards up to 200 GB capacity (because I got a good deal on them). This means the largest high capacity setup I have personally tested is 400 GB. Theoretically, the information in this guide should be attainable for MicroSD cards of 256 GB, 512 GB, or even 1 TB in size. Practically however it may be that the adapters on the market today have a limitation or that the CFW will not indeed support such large sizes. I will leave it up to others who have the available hardware to test this. I am happy to report though that although the PSP has issues with the formatting, it appears that once it is formatted properly via PC the PSP has no troubles accessing the cards. Try a different CFW (though I doubt it will make a difference as long as both support high capacity).

The only difference between SDHC and SDXC cards is the maximum storage capacity and default file system format. I have personally confirmed mixing and matching of MicroSD cards of different sizes and speeds (although they were all the same brand - SanDisk). For instance I installed a 64 GB with a 16 GB to get ~72 GB (after format) of usable storage. While you can technically create any size card from 1GB to 2TB, most people will be looking to create something 64 GB or higher. With all the cards (again, with the exception of #1) I was able to achieve a 2 x 64 GB cards (using the process described below).For what it is worth #5 would be my recommendation. This is because it was of a decent build quality and seemed to give the most consistent and reliable formatting results (more on that below).

If you had a "Format completed" message on your PSP and #1 above is true you can likely stop here and just start using the card.Once the cards were formatted however I was able to remove the MicroSDs and place them in any card and they all appeared to function normally. The exceptions here are #1 (the genuine PhotoFast which wouldn't support cards higher than 32 GB) and #6, which seemed to have no issues with 2 x 64GB but would not read my 200 GB cards properly.