CMS 8GB (1X8GB) DDR3 12800 1600MHz NON ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad X230 Tablet Series - A8 System Specific Memory - Newegg.com
A-Tech 8GB Module for Lenovo ThinkPad X230 Laptop & Notebook Compatible DDR3/DDR3L PC3-14900 1866Mhz Memory Ram (ATMS350729B30845X1) at Amazon.com
Lenovo ThinkPad X230 Tablet Laptop, Intel Core i7-3rd Gen. CPU, 4GB DDR3 RAM, 500GB SATA Hard, 12.5 inch 360° Touchscreen, Windows 10 Pro (Renewed) with 15 Days of IT-Sizer Golden Warranty price