OWC 8GB PC3-12800 DDR3L 1600MHz SO-DIMM 204 Pin CL11 Memory Module Upgrade Compatible with iMac, Mac Mini, and MacBook Pro (OWC1600DDR3S8GB) at Amazon .com
Kingston Technology 8GB DDR4 2133MHz DIMM Memory for Dell, Fujitsu Desktop KCP421NS8/8 at Amazon.com
Transcend 8 GB DDR3 1333GHz SO-DIMM (8 GB X 1 Module) Laptop Memory 204-Pin (TS1GSK64V3H) at Amazon.com
IBM 7894 8192MB (4X 16R1530 2048MB DIMMS) DDR-2 SERVER MEMORY at Amazon.com