Amazon.com: Memoria RAM de 16 GB (2 x 8 GB) compatible con Lenovo Thinkpad T420 4177, 4178, 4180, 4236 Series por CMS A13 : Electrónica
Lenovo ThinkPad P52 Memory Upgrades @Memory.NET
Upgraded my T520 with 16GB memory and a brand new 9-cell 70++ 94Wh battery. Looking forward to another 8+ years with this machine! : r/thinkpad
A-Tech 8GB (2 x 4GB) RAM for Lenovo THINKPAD T520 4240 | DDR3 1333MHz SODIMM PC3-10600 204-Pin Non-ECC Memory Upgrade Kit at Amazon.com
CMS 16GB (2X8GB) DDR3 10600 1333MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T520 4239; 4240, 4241, 4242, 4243 - A13 at Amazon.com
16GB KIT (2 x 8GB) for IBM Lenovo ThinkPad T Series T420 T420i T420s T520 T520i. SO-DIMM DDR3 Non-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com