4GB KIT 2 x 2GB Memory for DELL OptiPlex 3010 380 390 580 780 790 7900 9010 RAM | eBay
8GB Kit (2 X 4GB) DDR3 Memory Upgrade for Dell Optiplex 580 Desktop PC PC3-12800 240 pin 1600MHz RAM (PARTS-QUICK Brand) at Amazon.com
New Psu For Dell Optiplex 580 760 780 960 980 Sff 235w Power Supply L235p-01 H235p-00 Pw116 Rm112 R224m Fr610 67t67 Wu136 - Pc Power Supplies - AliExpress
Dell OptiPlex 580 Desktop Motherboard- TCYKM – Buffalo Computer Parts
Refurbished Dell Optiplex 380 Desktop PC with Intel Dual-Core Processor, 4GB Memory, 160GB Hard Drive and Windows 10 Pro Monitor Not Included (D380C2D4G160GW10ProKBMI)
Dell Optiplex 7010 Tower Quad Core i7 3770 3.4GHz 8GB Ram 500GB Hard D – RefurbishedPC