Lenovo ThinkPad T431s 20AA0031LM | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.90 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s 20AA0030US | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.90 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s 20AA002YUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s 20AA002WUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 2.10 GHz System memory: 8 GB  | 
Lenovo ThinkPad T431s 20AA000XUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T431s 20AA000VUS | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 2.10 GHz System memory: 8 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T431s 20AA000UUS | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 2.10 GHz System memory: 8 GB  | 
Lenovo ThinkPad T431s 20AA000PUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.90 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T431s 20AA000NUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.90 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T431s 20AA000LUS | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.90 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s 20AA000JUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s 20AA000HUS | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s 20AA000GUS | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T431s 20AA000BUS | 
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![]()  | OS: Windows 7 Professional Upgradable to Windows 8 Pro Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T431s (20AC-S02T00) | 
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![]()  | OS: Windows 7 Professional Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 2.10 GHz System memory: 4 GB  | 
Lenovo ThinkPad T431s (20AA-0034LM) | 
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![]()  | OS: Windows 7 Professional Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 8 GB  | 
Lenovo ThinkPad T431s (20AA-002YLM) | 
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![]()  | OS: Windows 7 Professional Display Resolution: 1600 x 900 Display Size: 14.00 " Processor Speed: 1.80 GHz System memory: 8 GB  | 
Lenovo ThinkPad T430u 8614ARU | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1366 x 768 Display Size: 14.00 " Processor Speed: 2 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T430u 8614AQU | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1366 x 768 Display Size: 14.00 " Processor Speed: 2 GHz System memory: 4 GB Hard Drive Size: 500 GB  | 
Lenovo ThinkPad T430u 8614APU | 
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![]()  | OS: Windows 8 Pro Display Resolution: 1366 x 768 Display Size: 14.00 " Processor Speed: 2 GHz System memory: 4 GB  |