Used - Lenovo ThinkCentre M91p, SFF, Intel Core i7-2600 @ 3.40 GHz, 8GB DDR3, NEW 128GB SSD, DVD-RW, No OS - Walmart.com
Refurbished: Lenovo ThinkCentre M91p, Small Form Factor, Intel Core i5-2400 @ 3.10 GHz, 12GB DDR3, 250GB HDD, DVD-RW, No Operating System - Newegg.com
Lenovo ThinkCentre M91P Intel i5|$ 179.99
Restored Lenovo ThinkCentre M91P-USFF Desktop PC with Intel Core i5-2400 Processor, 8GB Memory, 500GB Hard Drive and Windows 10 Pro (Monitor Not Included) (Refurbished) - Walmart.com