Securities and Exchange Commission 
Judiciary Plaza 
450 Fifth Street, N.W. 
Washington, DC 20549 
Re: ScanSource, Inc. 
Gentlemen: 
Pursuant to General Instruction 7 to Form 3 (Initial Statement of Beneficial Ownership), 
Form 4 (Statement of Changes in Beneficial Ownership) and Form 5 (Annual Statement of 
Changes in Beneficial Ownership) promulgated by the Securities and Exchange Commission 
pursuant to Section 16 of the Securities Exchange Act of 1934, the undersigned director, officer 
and/or shareholder of ScanSource, Inc. (the "Company") hereby authorizes and designates John 
J. Ellsworth, J. Creighton Lynes, Stefania Bondurant, John S. Harvey, and Robert B. Murphy and 
each of them, to execute and file with the Commission on his behalf any and all statements on 
Form 3, Form 4 or Form 5 relating to his beneficial ownership of securities of the Company as 
required by Section 16(a) of the Securities Exchange Act of 1934 and the rules of the 
Commission promulgated thereunder. This authorization and designation shall be effective for 
so long as the undersigned remains subject to the provisions of Section 16 of the Securities 
Exchange Act of 1934. 
Effective as of the 9th day of December, 2011. 
/s/ Michael L. Baur