Used - Dell OptiPlex 990, SFF, Intel Core i3-2100 @ 3.10 GHz, 8GB DDR3, NEW 1TB SSD, DVD-RW, No OS - Walmart.com
Desktop Computer Dell Optiplex 990 USFF Intel i3 Processor 4GB RAM and a 250GB Hard Drive Loaded With Windows 10 Home Premium Used - Like New - Walmart.com
Refurbished: DELL Desktop Computer OptiPlex 990 Intel Core i3 2nd Gen 2100 (3.10GHz) 4GB DDR3 250GB HDD Windows 10 Pro - Newegg.com
Refurbished: Dell Optiplex 990 SFF Computer Intel Core i5 2400 8GB 250GB HDD DVD Windows 10 Professional with Free Keyboard, Mouse,Power cord,WiFi Adapter - Newegg.com
Dell OptiPlex 990 Desktop i3-2120 3.3GHz 8GB 120GB SSD Windows 10 Home – Refresh Computers Online Marketplace
Refurbished Dell OptiPlex 990 Desktop PC with Intel Core i3-2100 Processor, 8GB Memory, 2TB Hard Drive and Windows 10 Pro (Monitor Not Included) - Walmart.com