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Restored Dell Optiplex 990-SFF WA1-0430 Desktop PC with Intel Core i7-2600 Processor, 16GB Memory, 2TB Hard Drive and Windows 10 Pro (Monitor Not Included) (Refurbished) - Walmart.com
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Refurbished: Dell OptiPlex 990 SFF PC - Intel Core i5 2400 2nd Gen 3.1 GHz 8GB 256GB SSD DVD-ROM Windows 10 Pro 64-Bit - Newegg.com
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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
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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
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Amazon.com: Dell Optiplex 990 SFF Desktop - Intel Core i5 3.1GHz., 16GB DDR3, 1TB Hard Drive, Windows 10 Pro 64-Bit, WiFi, DVD-ROM : Electronics
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Amazon.com: Dell OptiPlex 990 SFF Desktop Intel Quad-Core i5 2400 3.10 GHz 16GB DDR3 RAM 1TB HD DVDRW WiFi Bluetooth Windows 7 Professional 64-Bit : Electronics
![OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US](https://supportkb.dell.com/img/ka02R000000hxV5QAI/ka02R000000hxV5QAI_en_US_1.jpeg)
OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US
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OptiPlex 990 Small Form Factor (SFF) Removal Guide for the System Cover, Front Bezel, Optical Drive, Drive Cage and Hard Drive | Dell US
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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
![OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Memory, Fan Shelter, System fan, Power Switch Cable and Coin Cell Battery | Dell US OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Memory, Fan Shelter, System fan, Power Switch Cable and Coin Cell Battery | Dell US](https://supportkb.dell.com/img/ka02R000000hxV3QAI/ka02R000000hxV3QAI_en_US_2.jpeg)
OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Memory, Fan Shelter, System fan, Power Switch Cable and Coin Cell Battery | Dell US
![OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US](https://supportkb.dell.com/img/ka02R000000hxV5QAI/ka02R000000hxV5QAI_en_US_34.jpeg)
OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US
![OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US OptiPlex 990 Small Form Factor (SFF) Removal Guide for the Heatsink, Intrusion Switch, IO Panel, Internal Speaker and Power Supply | Dell US](https://supportkb.dell.com/img/ka02R000000hxV5QAI/ka02R000000hxV5QAI_en_US_2.jpeg)