Highly portable or Desktop Electronic Signature PadSignatureGem 1x5 is a small electronic signature capture pad with a large signing area. Designed for accuracy, reliability, and portability, the SignatureGem 1x5 features a pen with interchangeable inking and plastic tips, small size and weight, and is powered only by your computer's serial port. Unlike pressure-sensitive touchpad systems, the digitizing pen allows the sensor to be mounted inside a hard plastic casing for ruggedness and long life.