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
2GB DDR2-667 (PC2-5300) RAM Memory Upgrade for The IBM ThinkPad R60 Series R61i (7650CDU) (Genuine A-Tech Brand) at Amazon.com
Lenovo ThinkPad Laptop R61 14.1" Core 2 Duo 2.1GHz 4GB Ram 250GB Windows 10 Home
Lenovo ThinkPad R61i No Ram/HDD/PS For Parts Only | eBay
Lenovo Thinkpad R61 RAM-Memory (1 Gig) | Replacement Part
OFFTEK 256MB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad R61i (7742-xxx) (DDR2-5300) Laptop Memory at Amazon.com