This keyboard is a versatile option for those who need flexibility in connectivity. It supports PS/2, RF, Serial (RS-232), and USB connections. The mouse also functions as a presenter, making it a great option for presentations and meetings. The keyboard is perfect for those in the market for a reliable option for their computing needs. With its range of connectivity options, it can be used with a variety of devices, and the presenter mouse adds an extra layer of functionality. Whether you're working from home or in the office, this keyboard is sure to provide the functionality and connectivity you need.