![Amazon.com: DELL Optiplex 990 SFF PC, Intel Core i5 Processor, 16GB RAM, 2TB HDD, DVDRW, Keyboard & Mouse, Wi-Fi, Bluetooth 4.0, Windows 10 Home, 20in LCD Monitor (Renewed)'] : Electronics Amazon.com: DELL Optiplex 990 SFF PC, Intel Core i5 Processor, 16GB RAM, 2TB HDD, DVDRW, Keyboard & Mouse, Wi-Fi, Bluetooth 4.0, Windows 10 Home, 20in LCD Monitor (Renewed)'] : Electronics](https://m.media-amazon.com/images/I/61a6E8CtVjL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DELL Optiplex 990 SFF PC, Intel Core i5 Processor, 16GB RAM, 2TB HDD, DVDRW, Keyboard & Mouse, Wi-Fi, Bluetooth 4.0, Windows 10 Home, 20in LCD Monitor (Renewed)'] : Electronics
![Refurbished: Dell OptiPlex 990 SFF Desktop Intel Quad-Core i5 CPU 8GB DDR3 1TB HD DVDRW WiFi Windows 10 Pro - Newegg.com Refurbished: Dell OptiPlex 990 SFF Desktop Intel Quad-Core i5 CPU 8GB DDR3 1TB HD DVDRW WiFi Windows 10 Pro - Newegg.com](https://c1.neweggimages.com/ProductImage/A6AB_131236988783032741pVcO0FOfW8.jpg)
Refurbished: Dell OptiPlex 990 SFF Desktop Intel Quad-Core i5 CPU 8GB DDR3 1TB HD DVDRW WiFi Windows 10 Pro - Newegg.com
![Refurbished: Dell OptiPlex 990 SFF Desktop Intel Quad Core i7-2600 3.4GHz 8GB DDR3 RAM 500GB HD DVD-RW WiFi Microsoft Windows 7 Professional 64-Bit - Newegg.com Refurbished: Dell OptiPlex 990 SFF Desktop Intel Quad Core i7-2600 3.4GHz 8GB DDR3 RAM 500GB HD DVD-RW WiFi Microsoft Windows 7 Professional 64-Bit - Newegg.com](https://c1.neweggimages.com/ProductImage/A6AB_130754018909934320lTFokLzVX1.jpg)
Refurbished: Dell OptiPlex 990 SFF Desktop Intel Quad Core i7-2600 3.4GHz 8GB DDR3 RAM 500GB HD DVD-RW WiFi Microsoft Windows 7 Professional 64-Bit - Newegg.com
![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 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](https://i5.walmartimages.com/asr/7c78bd44-ba5c-4429-8e71-0cd8e7572e55.e2c13b68acfc484ada1625b4a3deaa74.jpeg)
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
![Amazon.com: Dell Optiplex 990 Premium Business Desktop Computer (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3 Memory, 500GB HDD, DVD, WiFi, Windows 10 Professional) (Renewed) : Electronics Amazon.com: Dell Optiplex 990 Premium Business Desktop Computer (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3 Memory, 500GB HDD, DVD, WiFi, Windows 10 Professional) (Renewed) : Electronics](https://m.media-amazon.com/images/I/71wEffupBUL.jpg)
Amazon.com: Dell Optiplex 990 Premium Business Desktop Computer (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3 Memory, 500GB HDD, DVD, WiFi, Windows 10 Professional) (Renewed) : Electronics
![Dell OptiPlex 990 Desktop i3-2120 3.3GHz 8GB 500GB HDD Windows 10 Home – Refresh Computers Online Marketplace Dell OptiPlex 990 Desktop i3-2120 3.3GHz 8GB 500GB HDD Windows 10 Home – Refresh Computers Online Marketplace](https://refreshcomputers.net/shop/wp-content/uploads/2020/10/Dell_Optiplex_990..jpg)
Dell OptiPlex 990 Desktop i3-2120 3.3GHz 8GB 500GB HDD Windows 10 Home – Refresh Computers Online Marketplace
![Refurbished: Dell OptiPlex 990 SFF PC - Intel Core i5 2500 2nd Gen 3.30 GHz 8GB 500GB HDD DVD-RW Windows 10 Pro 64-Bit - Newegg.com Refurbished: Dell OptiPlex 990 SFF PC - Intel Core i5 2500 2nd Gen 3.30 GHz 8GB 500GB HDD DVD-RW Windows 10 Pro 64-Bit - Newegg.com](https://c1.neweggimages.com/ProductImage/A9YN_1_201902111967065191.jpg)
Refurbished: Dell OptiPlex 990 SFF PC - Intel Core i5 2500 2nd Gen 3.30 GHz 8GB 500GB HDD DVD-RW Windows 10 Pro 64-Bit - Newegg.com
![Amazon.com: Dell Optiplex 990 Desktop Computer - Intel Core i7 3.4GHz, 16GB DDR3, New 1TB SSD, Windows 10 Pro 64-Bit, WiFi, DVDRW (Renewed) : Electronics Amazon.com: Dell Optiplex 990 Desktop Computer - Intel Core i7 3.4GHz, 16GB DDR3, New 1TB SSD, Windows 10 Pro 64-Bit, WiFi, DVDRW (Renewed) : Electronics](https://m.media-amazon.com/images/I/61Y5+AI624L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Dell Optiplex 990 Desktop Computer - Intel Core i7 3.4GHz, 16GB DDR3, New 1TB SSD, Windows 10 Pro 64-Bit, WiFi, DVDRW (Renewed) : Electronics
![Amazon.com: DELL Optiplex 990 Desktop Computer (Intel Quad-Core i7-2600 up to 3.4GHz, 16GB RAM, 2TB HDD, DVD, WiFi, VGA, DisplayPort, Windows 10 Professional) (i7 16GB 2TB) (Renewed)'] : Electronics Amazon.com: DELL Optiplex 990 Desktop Computer (Intel Quad-Core i7-2600 up to 3.4GHz, 16GB RAM, 2TB HDD, DVD, WiFi, VGA, DisplayPort, Windows 10 Professional) (i7 16GB 2TB) (Renewed)'] : Electronics](https://m.media-amazon.com/images/I/41aBMVi41iL._AC_.jpg)
Amazon.com: DELL Optiplex 990 Desktop Computer (Intel Quad-Core i7-2600 up to 3.4GHz, 16GB RAM, 2TB HDD, DVD, WiFi, VGA, DisplayPort, Windows 10 Professional) (i7 16GB 2TB) (Renewed)'] : Electronics
![Refurbished: Dell Optiplex 990 SFF - QUAD CORE Intel i5-2400 - 1TB 7200RPM HDD - 8 GB DDR3 RAM - WiFi - Dual Video Output - DVD-RW - Windows 7 Pro 64-Bit Operating System - Newegg.com Refurbished: Dell Optiplex 990 SFF - QUAD CORE Intel i5-2400 - 1TB 7200RPM HDD - 8 GB DDR3 RAM - WiFi - Dual Video Output - DVD-RW - Windows 7 Pro 64-Bit Operating System - Newegg.com](https://c1.neweggimages.com/ProductImage/A65E_131312205728030937D2tStuExsu.jpg)
Refurbished: Dell Optiplex 990 SFF - QUAD CORE Intel i5-2400 - 1TB 7200RPM HDD - 8 GB DDR3 RAM - WiFi - Dual Video Output - DVD-RW - Windows 7 Pro 64-Bit Operating System - Newegg.com
![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 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](https://m.media-amazon.com/images/I/71TRRiO0TNL.jpg)
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
![Amazon.com: Dell Optiplex 990 Desktop Computer, Intel Core i5 3.1GHz, 4GB RAM, 250GB HDD, Keyboard/Mouse, DVD, 17in LCD Monitor, Windows 10 (Renewed) : Electronics Amazon.com: Dell Optiplex 990 Desktop Computer, Intel Core i5 3.1GHz, 4GB RAM, 250GB HDD, Keyboard/Mouse, DVD, 17in LCD Monitor, Windows 10 (Renewed) : Electronics](https://m.media-amazon.com/images/I/61ITxifuVrL.jpg)