Lenovo ThinkPad Laptop R61 14.1" Core 2 Duo 2.1GHz 4GB Ram 250GB Windows 10 Home
Upgrading RAM in the ThinkPad R61 - YouTube
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
A-Tech 4GB KIT (2 x 2GB) For IBM-Lenovo Thinkpad Notebook Series R61i (7742-xxx) R61i (8918-xxx) R61i (8932-xxx) R61i (8934-xxx) R61i (8943-xxx) R61i R. SO-DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory at Amazon.com
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),.., By Hynix - Walmart.com
Lenovo ThinkPad Laptop R61 14.1" Core 2 Duo 2.1GHz 4GB Ram 250GB Windows 10 Home
ThinkPad Laptop R Series Intel Pentium dual-core T2330 (1.60GHz) 1GB Memory 120GB HDD Intel GMA X3100 14.1" Windows XP Professional R61i(77328AU) - Newegg.com