Alpha 4008-2 8 x dual-speed pushbuttons
Alpha 4008-3 6 x dual-speed pushbuttons + 2 x single-speed pushbuttons
Alpha 4008-3S 6 x dual-speed pushbuttons + 1 x single-speed pushbuttons + 1 x selector switch
Alpha 4012-2 6 x dual-speed pushbuttons + 6 x single-speed pushbuttons
Alpha 4012-3 8 x dual-speed pushbuttons + 4 x single-speed pushbuttons
Alpha 4012-3S 8 x dual-speed pushbuttons + 3 x single-speed pushbuttons + 1 x selector switch