2GB RAM Memory for Lenovo ThinkPad T Series T61 ( Type 7665 ) Black Diamond Memory Module DDR2 SO-DIMM 200pin PC2-5300 667MHz Upgrade - Walmart.com
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
RAM memory for Lenovo ThinkPad T61p
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
Lenovo Thinkpad T61 14” Notebook Laptop 7665-AD2
I found her back my beloved Thinkpad T61 : r/thinkpad
2GB Memory RAM Upgrade for the Lenovo Thinkpad R61 Series T60 Series T61 Series X60 Series and X61 Series Laptops (DDR2-667 PC2-5300 SODIMM) - Walmart.com
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide