The Microsoft Natural Ergonomic Keyboard 4000 V1.0 KU-0462 Wired USB Black is a standalone keyboard designed by Microsoft to provide a comfortable and ergonomic typing experience. With a sleek black color and USB connectivity, this keyboard is perfect for those looking for a reliable and efficient keyboard for their computer setup. The ergonomic design helps to reduce strain on the hands and wrists, making it ideal for long hours of typing. Overall, this keyboard offers a combination of functionality and style for a seamless computing experience.