What you got, jkercado, are SPAUS models. The first 'S' says the key caps are sublimated, which is not so common for G84-4100. I have 3 tampo printed, they are PPAUS, and 3 laser etched, LPAUS and LCAUS. I like better the lasered ones, for the printed caps will fade in a few years. The sublimated caps will last a long time.