Optiplex 390 MT PCI-E Sata Expansion not working | DELL Technologies
OptiPlex 390 Small Form Factor Owner's Manual
Dell OptiPlex 390 PCIE is it 2.0 or 1.0? | DELL Technologies
DELL OPTIPLEX 390
Buy Dell OptiPlex 390 SFF Small Form Motherboard F6X5P
Amazon.com: Dell Optiplex 390 Business High Performance SFF Desktop Computer PC (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3, 1TB HDD, HDMI, DVD, Windows 10 Pro 64-bit) (Renewed) : Electronics