8GB (4GBx2) Team High Performance Memory RAM Upgrade For Lenovo ThinkPad T400 Series T410 Series Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
2gb Memory Upgrade 4 Lenovo ThinkPad T400 T400s Notebook Series (ddr3-pc8500 Pc3-1066) for sale online | eBay
Upgrading RAM on my Lenovo Thinkpad T410 – Luca Ferrari – Open Source advocate, human being