Amazon.com: A-Tech 4GB Memory RAM for Dell OptiPlex 3010 - DDR3 1600MHz PC3-12800 Non ECC DIMM 1Rx8 1.5V - Single Desktop Upgrade Module (Replacement for A7398800) : Electronics
4GB DDR3-1600MHz PC3-12800 240-pin 1.5V 1Rx8 Non-ECC Unbuffered Desktop Memory by NEMIX RAM at Amazon.com
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com