Lenovo ThinkPad X220 4287 Hardware Maintenance Manual page 2

Note: Before using this information and the product it supports, be sure to read the general information
under Appendix A "Notices" on page 135.
First Edition (April 2011)
© Copyright Lenovo 2011.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration
"GSA" contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925.