The Darci USB is a Morse-code interface for a computer designed to provide mouthstick access for individuals with upper extremity disabilities. The Darci USB also has audio feedback through a built-in speaker, making it usable by persons who are blind or have low vision. The lightweight Darci USB uses Windows keyboard drivers, and when it is plugged into a computer's USB port, the computer recognizes the device as if it were the keyboard. The Darci USB can be customized to match the user's capabilities. Timing, number of input switches (one, two, or three), switch connections, and code set are stored in the device's memory. This allows the user to move the Darci USB from computer to computer without changing the setup. COMPATIBILITY: For use with IBM and compatible computers. SYSTEM REQUIREMENTS: Windows 98/2000/ME/XP. POWER: Darci USB is powered by the USB port of the computer to which it is attached. DIMENSIONS (LxW): 5.5 x 5 inches.