This keyboard is programmable. Beats Filco, HHKB, and Realforce keyboards in that respect.
Yup, and that should be the only point for you to get it(provided you are lucky enough to get one that come with good controller that won't go fried after few weeks/month uses, which most cases does). Also, there is lots bad comment about the switches too for gone insensitive(worn) or even broken stems.
In short, that keyboard is a junk if you don't modify it and at that price, that is definitely a rip-off and NO to go for it(FYI, it only cost 230RMB in China, you do the maths).