For various reasons I'm looking to buy a new card for the second slot in my D750. My usual retailer (Ffordes photographic) has a limited range of cards - very limited in fact as they only stock Delkin brand. These are all rated as 163X SDHC Class 10 and are, well, either cheap or excellent value depending on how well they actually perform. I can't find any online reviews from a source that I would trust.
So, a specific question: does anyone have any direct experience using this brand?
Thanks