REPLACING SAMSUNG 840 WITH SANDISK ULTRA II

Overall speed decreased… but if I copy it to new directory… delete old directory,  then speed is back to normal…

That was a couple years ago… I moved the Samsung 840 into a USBV2 enclosure for use there… I don’t see speed loss that way…  :)!  It still works… as does the Ultra II’s (but those stay at full speed)…