Refurbished: Lenovo Laptop ThinkPad Intel Core i7 2nd Gen 2620M (2.70GHz) 8GB Memory 500GB HDD Intel HD Graphics 3000 14.0" Windows 10 Pro T420 - Newegg.com
Amazon.com: Lenovo Thinkpad T420 - Intel Core i5 2520M 8GB 320GB Windows 10 Professional (Renewed) : Electronics
8GB Stick for IBM Lenovo ThinkPad T Series T420 T420i T420s T520 T520i. SO-DIMM DDR3 Non-ECC PC3-10600 1333MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com