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For DELL Optiplex 990 790 T1600 MT Motherboard LGA1155 Q67 DDR3 fully work|Motherboards| - AliExpress
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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
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Refurbished | Dell Optiplex 990 Intel Core I5 2nd Generation Full Size Desktop | Computer | RefurbConnect
OptiPlex_990SN23062624506 Dell OptiPlex 990, MT, Core i7-2600 3.80 GHz, 16GB DDR3, 1TB HDD, Wi-Fi, KBD+Mouse, No OS - Refurbished
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