The Microsoft Natural Ergonomic Keyboard 4000 in black is a wired USB keyboard designed for comfort and efficiency. Its ergonomic design features a detachable palm/wrist rest for added support during long typing sessions. With a standard QWERTY layout and English language, this keyboard is suitable for everyday use. The multimedia integration allows for easy access to common functions. The sleek black plastic construction and dimensions of 19.7 inches in length, 2.36 inches in height, and 11.6 inches in width make it a practical choice for any workspace.Clean keyboard, I gave it a light dusting and cleaning. Box has some tests as pictured. Arm rest had two small worn spots. In excellent shape!