The Microsoft Natural Ergonomic Keyboard 4000 v1.0 KU-0462 USB with Riser is a black ergonomic keyboard designed by Microsoft. It features a QWERTY layout, multimedia integration, and is wired for USB connectivity. The keyboard has a sleek design with dimensions of 19.8 inches in length, 10.3 inches in width, and 1.7 inches in height. With its English language settings and multimedia integration, this keyboard is a reliable and comfortable option for users looking for a high-quality ergonomic keyboard for their computing needs.