An information for who's looking to add SSD on Lifebook S762 or S792.
I found out we need to buy sub board for mSATA P/N:FUJ:CP603460-XX.
But after 6 years in existance, it's still quite pricey to by the sub board.
Can buy 250GB msata SSD with the board price.
Better to add extra HDD or SSD in the disc caddy as it's easy to pull in and out.