In the preferred embodiment, the invention is a data entry device intended for use by voters during an election to enter selected choices. Its basic functions are to display available options and accept voter input. Its design achieves simplicity in its preparation, deployment, and operation at any given electoral event. It also furnishes accuracy, reliability, durability, and reusability. It connects in a standard protocol to a voting station's host processor. It accepts up to 300 key codes, each one potentially a unique selection. Names, symbols, or pictures identifying candidates are printed on a paper template compliant with the device's geometry, inserted prior to an election, and visible through the device's transparent cover. When the number of candidates or valid options in a contest exceeds its capacity, additional identical units can be chain-connected, until a sufficient number of voting options are available.