The Microsoft Natural Ergonomic Keyboard 4000 V1.0 KU-0462 is a wired USB keyboard with a sleek black color and QWERTY layout. It features multimedia integration, enhanced function keys, programmable one-touch buttons, and quiet keys for a comfortable and efficient typing experience. The ergonomic design of this keyboard offers a more natural and fluid typing motion, making it a great choice for long hours of work or gaming. The Microsoft Natural Ergonomic Keyboard 4000 V1.0 is a reliable and high-quality keyboard that has been tested and confirmed to work effectively.