Mouse-in-a-Box Scroll USB/PS2 for PC or Mac
This is the perfect replacement mouse for Mac® or PC users who page through long documents or Web pages on a regular basis.
Kensington MOUSE-IN-A-BOX 2-BUTTON, USB Type-A + PS/2
Kensington MOUSE-IN-A-BOX 2-BUTTON. Device interface: USB Type-A + PS/2