This is for both set. Selling AS/is works fine just some on the letter pain on the keyboard are wiped off. Microsoft Natural Ergonomic Keyboard 4000 is a wired USB keyboard designed for comfort and efficiency. Featuring a QWERTY layout and English language options, this black keyboard offers multimedia integration for convenient access to various functions. With the trusted Microsoft brand behind it, this ergonomic keyboard is a reliable choice for those looking for a high-quality input device for their computer setup.