4GB Upgrade for a Dell OptiPlex 380 Desktop System (DDR3 PC3-12800, Non-ECC, ) at Amazon.com
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 380 Intel Pentium Dual-Core 3.00GHz CPU 4GB RAM NO HDD NO OS | eBay