Lenovo ThinkCentre A61e - Manual (Page 34)

3. Locate the mouse connector. See “Locating connectors on the rear of your
computer” on page 6 or “Locating controls and connectors on the front of your
computer” on page 5.
4. Disconnect the failing mouse cable from the computer.
5. Connect the new mouse to the appropriate connector on the computer.
6. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Figure 22. Mouse connectors, USB
26 Hardware Installation and Replacement Guide