"Seems pretty slow"

I haven't done any formal benchmarks, but the device seems pretty slow. I haven't seen any real performance boost vs. my old card even on bulk file copies. I have another 8GB samsung card that may be a knockoff that performs noticeably better than this card.I'm using it anyway. I don't really have the time to return it or anything.

"Good chip"

I have always had good success with SanDisk and this one didn't let me down. I use it in my Camone POV and it works well.