This card, good speed relative to its price, give me satisfaction with my Nikon D3S, Nikon and D4. BUT IS COMPLETELY INCONSISTENT WITH MY NEW NIKON D4S. Kingston customer service can not do anything because NO COMPACT FLASH brand to date only works with this package! Not good for Kingston that, when I see that ALL my other CF cards of various brands (Sandisk, Transcend, Sony), even very old work from 2004, they no problem on my D4S.