Review on 📲 UCEC Dual Slot Micro SD/SDHC to Memory Stick Pro Duo Adapter for PSP Sony: Unlock expanded storage on your PSP with this efficient adapter! by Jim Ball

I used this to install 128GB of memory on my good old PSP. It will be recognized immediately and formatted without any problems. I transferred 14GB of data to it with no problems. Shows only one memory card, so I'm asking what's happening with the file storage; Does it fill one card first and then the second, or does it spread the data evenly between the two cards? I suspect the latter, but I hope it doesn't cause any problems when I reach my first 64GB of data.