DUOMEIQI 8GB Kit(2 X 4GB) Pc3-10600 1333Mhz ddr3 Sdram 2Rx8 Pc3 10600s Sodimm 204-Pin CL9 1.5V Pc3 10600 ddr3-1333 Pc3-10600S Non-Ecc Unbuffered for Laptop at Amazon.com
Troubleshooting] Problem with Ram Frequency on Speccy : r/buildapc
Amazon.com: Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3 1333MHz PC3-10600 CL9 for Mac Book Pro (Early/Late 2011 13/15/17 inch), iMac(Mid 2010, Mid/Late 2011 21.5/27 inch), Mac Mini(Mid 2011) MAC RAM Upgrade :
OWC 8.0GB DDR3 ECC PC10600 1333MHz DIMM Memory Upgrade Module Compatible with Mac Pro 2009-2012 (OWC1333D3ECC8GB)