Matrix Orbital MX412 USB LCD
 

The highlight for this specific product is a 20x4 display area and the
inclusion of an integrated keypad on the left and right hand sides. The
bracket and keys are protected by a hard coated black Lexan overlay and
includes pre-drilled mounting holes for simple installation into a
standard case. The front black Lexan bay display includes a series of 15
pre-programmed keys. On the bottom left and right hand sides are
directional arrow keys and three function keys labeled F1, F2 and F3.
These keys make up the bulk of the keypad options and correspond to
specific letter outputs when pressed inside an application program. The
advantage of this type of functionality allows you define these keys for
specific tasks when pressed and opens up several different scenarios for
everyday use.

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