Amazon.com: Lenovo ThinkPad X201 12.1 Inch Business Laptop, Intel Core i5-520M up to 2.93GHz, 4G DDR3, 120G SSD, WiFi, VGA, Windows 10 Pro 64 Bit Multi-Language Support English/French/Spanish(Renewed) : Electronics
4GB Memory for Lenovo ThinkPad X201 DDR3 PC3-10600 1333MHz SODIMM RAM (PARTS-QUICK Brand) at Amazon.com