Microsoft Natural Ergonomic Keyboard 4000 v1 1048 Wired USB Split Design KU-0462 *Guaranteed to work! FULLY TESTED FULLY WORKS! SHIPS FAST!! Check out my other cool listings! (: I might have other items like this one! If you have any questions about the item, please do not hesitate to ask! I'm always here to help in any way I can. I want you to be happy and fully satisfied with your purchase! Thank You! (: SKU: 2415