OFFTEK 2GB Replacement Memory RAM Upgrade for IBM-Lenovo ThinkPad T410 Series (DDR3-8500) Laptop Memory at Amazon.com
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
ThinkPad T410 has its innards exposed for the sake of a component upgrade guide | Engadget