Microsoft Natural Ergonomic Keyboard 4000 v1.0 KU-0462 Microsoft Ergonomic Keyboard I purchased this used due to it being discontinued, and I've been using it for about two years. However, I'm selling it because I've switched to a smaller keyboard. It's a wired keyboard. I plan to ship it anonymously via Rakuraku Mercari Bin or Yuuyu Mercari Bin. Please ask if you have any questions. However, I'm not good at negotiating, so I would appreciate it if you could refrain from price negotiations. Connectivity: Wired Keyboard layout: Japanese