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
OptiPlex 390 Small Form Factor Owner's Manual
OptiPlex 390 Small Form Factor Owner's Manual
DELL OPTIPLEX 390
User manual Dell OptiPlex 390 (English - 92 pages)
User manual Dell OptiPlex 390 (English - 92 pages)
OptiPlex 390 Setup and Features Information Tech Sheet
Support for OptiPlex 390 | Documentation | Dell US