Black 4X4 Keyboard

16-Button Numeric Keypad Matrix 

Rubber-domes beneath each button provide satisfying key travel with each button press. Each key is emblazoned with a legible white character molded into its surface. Four mounting holes allow solid and easy mounting to a panel. The single-row 0.1-inch-pitch solder pads are breadboard friendly. Only eight of the ten solder pads carry signals - the solder pads on the ends of the row are purely for mechanical attachment. The keys are connected in a 4x4 matrix configuration.