DDR3 16GB Kit (4 x 4gb) RAM DDR3 1333MHz SODIMM RAM PC3 10600S CL9 1.5V 204 Pin Non-ECC Black Board for Mac/iMac/Laptop at Amazon.com
32GB (8GBx4) DDR3 ECC 1333MHz Memory for 2010 Mac Pro 5.1 6-core and 12-core
MacBook Pro 2011 RAM - 1333MHz vs. 1600MHz | MacRumors Forums
Upgrade Laptop Tecmiyo 8gb Ddr3 Pc3 12800s/10600s/8500s - Temu
RAM running 1333 Mhz instead of 1600 Mhz | tonymacx86.com
16GB 1333 MHz DDR3 Memory for 2011 MacBook Pro and iMac
OWC 4.0GB (2X 2GB) 1333MHz DDR3 SO-DIMM PC3-10600 204Pin SO-DIMM CL9 Memory RAM Upgrade Module for iMac, Mac Mini, MacBook Pro and PC laptops (OWC1333DDR3S04S) at Amazon.com