4GB RAM Memory for Lenovo ThinkPad W510 Series Black Diamond Memory Module DDR3 SO-DIMM 204pin PC3-10600 1333MHz Upgrade System Specific Memory - Newegg.com
CMS 128GB (4X32GB) DDR4 21300 2666MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® ThinkPad P52, ThinkPad P53, ThinkPad P72, ThinkPad P73 - D106 at Amazon.com