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 :
SAMSUNG M471A1K43CB1-CTD 2666MHz Memory Modules (8GB, 1 x 8GB, DDR4, 2666 MHz, 260-Pin SO-DIMM, Black, Green) at Amazon.com
CMS 16GB (2X8GB) DDR3 10600 1333MHZ ECC Non Registered DIMM Memory Ram Upgrade Compatible with IBM® System System X3250 M4 2583-Xxx Series for Server Only - C66 at Amazon.com
OWC 32GB (2 x 16GB) PC21300 DDR4 2666MHz 260pin SO-DIMMs Memory Ram Module, Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs, (OWC2666DDR4S32P) at Amazon.com
V-Color 32GB (2 x 16GB) ECC SO-DIMM DDR4 2666MHz (PC4-21300) for NAS Micro Server/Workstation/Compatible with Synology 21 Series 2Rx8 CL19 1.2V (TES416G26D819K-VKC) at Amazon.com
Arch Memory 4GB 240-Pin DDR3 1333 MHz ECC UDIMM RAM for ASUS TS100-E7/PI4 Server at Amazon.com
OWC 16GB (2 x 8GB) PC21300 DDR4 2666MHz 260pin SO-DIMMs Memory Ram Module Compatible with Mac Mini 2018, iMac 2019 and up, and Compatible PCs (OWC2666DDR4S16P) at Amazon.com
Arch Memory 4GB 240-Pin DDR3 1333 MHz ECC UDIMM RAM for ASUS TS100-E7/PI4 Server at Amazon.com
Crucial 16GB Kit (8GBx2) DDR4 2666 MT/s (PC4-21300) SR X8 DIMM 288-Pin Memory - CT2K8G4DFS8266 at Amazon.com
DUOMEIQI Pc3-10600 ddr3 ram 8GB (2 X 4GB) 1333Mhz ddr3 Sdram 2Rx8 Pc3 10600s Sodimm Pc3 10600 ddr3-1333 Pc3-10600S 204-Pin CL9 1.5V Non-Ecc Unbuffered for Laptop at Amazon.com
16GB KIT (2 x 8GB) for Acer AC100 AC100. DIMM DDR3 ECC Unbuffered PC3-10600E 1333MHz Dual Rank Server Ram Memory. Genuine A-Tech Brand. at Amazon.com