Sony 32 GB PRO-HG Duo HX Memory Stick MSHX32A (Black)
[027242788329]

I bought this memory stick for my PSP, and didn't want to skimp on the storage space. The PSP (the slim 3000 model) had no issues recognizing it, and just as I suspected, I have no issues with the speed. I'm very happy with my purchase, I just wish it could have been shipped directly to me at an APO, and not have to ask a friend to forward it to me.