I use an eyefi card in my D800 , which I have set to , save the raw files to the C/F card & jpegs to the S/D eyefi card . once set up,
the jpegs load up to my Tablet within a couple of seconds for review. All works fine for me. The D800 has 2 card slots 1 C/f & 1 S/d
regards Colin . Hope...