Amazon.com: CMS 128GB mSATA 6GB/s Internal SSD Compatible with Lenovo ThinkPad T420 Series - C29 : Electronics
LENOVO ThinkPad T420S Laptop, 14.0 Intel Core I5-2520M 2.5G, 4G DDR3, 128G SSD, VGA,DP,USB 3.0, WIFI, DVDRW, Windows 10 Pro 64 Bit-Multi-Language, 1 Year Warranty Used Grade A - Walmart.com
Lenovo Thinkpad T420s review
Lenovo ThinkPad T420 14.0" Black USED Laptop - Intel Core i5 2540M 2nd Gen 2.6 GHz 8GB SODIMM DDR3 SATA 2.5" 256GB SSD DVD-RW Windows 10 Pro 64-Bit - Walmart.com