SOLVED: Are 16GB RAM (2x8Gb) possible on my Lenovo T400? - Lenovo Laptop T400 - iFixit
8GB KIT (2 x 4GB) for IBM Lenovo ThinkPad T Series T400 T400s T500. SO-DIMM DDR3 Non-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
Per Lenovo ThinkPad T400 T410 X201 c225 W700ds X200 RAM per Laptop 8GB 2Rx8 PC3-10600S DDR3 1333MHz 4gb pc3 8500 1066 memoria _ - AliExpress Mobile
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad T400 2764, 2765, 2766, 2767, 2768 - A35 at Amazon.com