Can the FS7 use the newer SDHC UHS-II cards for the picture profile transfers or must it be the UHS-1 cards?

UHS-II cards are backwards compatible, but picture profile data is not video data so data transfer speed is irrelevant. AFIAK no Sony SD card based camera supports UHS-II natively, only through UHS-I's standard SD card pin layout. (UHS-II has extra pins)

Thanks for reply, helpful