Upgrade from your trackball mouse with this Microsoft 3-Button USB/PS/2 Optical Scroll Mouse!The D66-00068 is the perfect, simple solution for your mouse needs. It is compatible with Microsoft or Mac computers, as well as being compatible with either PS/2 or USB interfaces! The included adapter allows you to connect easily to either interface.The D66-00068 also features reliable, precise optical technology. You'll be able to navigate on nearly any surface accurately and efficiently! Plus, with an ambidextrous, ergonomic design, you'll feel comfortable using this mouse with either hand. The mouse color also matches most standard computer white colors.Order your Microsoft 3-Button USB/PS/2 Optical Scroll Mouse today!