Surface RT has two detachable keyboards, one called Touch, the other called Type. Touch (the blue one in the photo) is just 3mm thick and the keys don’t move when you strike them although there is a soft clicking noise. It’s made of a suede-like material and has notches in the f and j keys so you can feel where your fingers ought to be. The Type keyboard is thicker at 5mm but has mechanical keys that depress when struck. It’s a lot easier for someone used to a traditional keyboard to type on the Type than on the Touch. You can buy Surface RT without a keyboard ($499), or bundled with Touch ($599). You can buy the keyboards separately - $120 for Touch, $130 for Type. Touch comes in four colors other than black that cost $20 more.