CMS 8GB (2X4GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T61, T61P Ddr2 Pc5300 Sodimm - B116 at Amazon.com
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
Cream of the Crop? The ThinkPad T61p Upgrade
Lenovo ThinkPad T61
4GB kit (2GBx2) Upgrade for a Lenovo ThinkPad T61 Series System (DDR2 PC2-5300, Non-ECC, ) at Amazon.com
8GB (2x4GB) MEMORY RAM FOR IBM Lenovo ThinkPad T61, T61p DDR2 A41 | eBay
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
My upgraded T61 Thinkpad : r/thinkpad
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
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) at Amazon.com
4GB 2X2GB Memory RAM for Lenovo ThinkPad T Series T61 ( Type 7665 ) 200pin 667MHz PC2-5300 DDR2 SO-DIMM Black Diamond Memory Module Upgrade System Specific Memory - Newegg.com
My Decade Driver: a 2008 vintage Lenovo Thinkpad T61! New battery, SATA SSD, and RAM upgrade. A bit sluggish but it works! : r/retrobattlestations
Lenovo Thinkpad T61 RAM-Memory (2 Gig) | Replacement Part