Modular keyboard

FIG. 1 is a perspective view of a modular keyboard in a first state;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of the modular keyboard in a second state.

The broken lines depict features of the modular keyboard which form no part of the claimed design.