Microsoft Natural Ergonomic Keyboard 4000, Black

* Advanced ergonomic keyboard with cushioned palm rest.
* Zoom slider lets you magnify screen images for easier viewing or editing.
* Encourages natural hand, wrist and forearm positions.
* Makes computer-use more comfortable, more productive.
* USB connectivity for Windows 2000/XP, Mac OS X 10.1.5 or later.
* Backed by the manufacturer's 3-year limited warranty.