Dell OptiPlex 7040 Series (SFF) Review | StorageReview.com
Dell Optiplex 7040 Teardown - YouTube
parts-quick 16GB Memory for Dell Optiplex 7040 Mini-Tower DDR4 2133MHz DIMM RAM at Amazon.com
Specs DELL OptiPlex 7040 DDR4-SDRAM i5-6500T mini PC 6th gen Intel® Core™ i5 4 GB 500 GB HDD Windows 7 Professional Black PCs/Workstations (7040-1760)
16GB Memory RAM Compatible for Dell Optiplex 7040 SFF,Optiplex 7040 SFF,7040 (Mini-Tower),7050 Small Form Factor,3050 Small Form Factor,3050 Tower,5055 Tower,5050 Tower,5050 Small Form Factor,5055 S - Newegg.com
Dell OptiPlex 7040 review – mini business configuration with great capabilities