Make sure this fits by entering your model number.
Trackball Comfort-Elecom Handheld Trackball Mouse Has A Sensitive Rolling Ball And Frequency Stable Bluetooth Connection. Sculpted Shape Supports Your Hand Staying In One Place, Move The Cursor Without Moving Your Arm. Suitable For Both Left And Right Hand
Functional10 Buttons-It Is Very Easy To Move In Any Direction. It Comes With 10 Physical Buttons On The Device And You Can Assign Your Favorite Functions To All Buttons