Kensington® Expert Mouse® 5.0

Kensington® Expert Mouse® 5.0 has a larger trackball, better control, and smoother movement. Greater surface area makes controlling the cursor easier. Move the ball with your palm, with your hand in an open, relaxed position. Space-saving 5-3⁄4" x 4-1⁄2" footprint. Buttons on both sides of the ball for left- and right-handed users. USB and PS/2®, connectivity require OS 8.01 or later for Mac®, Windows® 98 or higher for PC.