Amazon.com: Dell OptiPlex 3020 MT Desktop PC - Intel Core i5 3.2GHz Quad Core - 4GB RAM - 500GB 7200RPM HDD - DVD Writer - Win 7 Pro (Pre-installed ) - No Monitor : Electronics
Amazon.com: A-Tech 8GB Memory RAM for Dell OptiPlex 3020 SFF - DDR3 1600MHz PC3-12800 Non ECC DIMM 2Rx8 1.5V - Single Desktop Upgrade Module (Replacement for A6994446) : Electronics
Optiplex 3020 Max Ram Cheap Sale, 59% OFF | ilikepinga.com
Refurbished: Dell OptiPlex 3020 Small Form Factor Computer PC, 3.20 GHz Intel i5 Quad Core Gen 4, 16GB DDR3 RAM, 512GB SSD Hard Drive, Windows 10 Home 64 bit - Newegg.com
Optiplex 3020 SFF Graphics Card Upgrade - Dell Community