Amazon.com: Dell Optiplex 990 SFF Desktop Business Computer PC - Intel Core i5-2400 3.10GHz 8GB DDR3 RAM 128GB SSD DVD Windows 10 Professional (Renewed) : Electronics
Used Dell OptiPlex 990 SFF Desktop PC with Intel Core i5-650 Processor, 4GB Memory, 500GB Hard Drive and Windows 11 Pro (Monitor Not Included) - Walmart.com
Renewed Dell OptiPlex 990 SFF Desktop PC i5-2400 8Gb RAM 500GB HDD Windows 10 With 30 days Return, 90 Days Exchange
Dell OptiPlex 990 Intel Quad Core HT i5-2500 CPU 4GB RAM (250 GB or 500GB HDD) | eBay