9 Computer monitors and displays designed for shipboard use, namely to withstand corrosion, vibration, dry heat, damp heat, low temperatures, radiated and conducted emissions, and electrostatic discharge (ESD); computer keyboards designed for shipboard use, namely to withstand corrosion, vibration, dry heat, damp heat, low temperatures, radiated and conducted emissions, and electrostatic discharge (ESD); computer cursor control devices, namely trackballs, designed for shipboard use, namely to withstand corrosion, vibration, dry heat, damp heat, low temperatures, radiated and conducted emissions, and electrostatic discharge (ESD); and electric converters