 "Lenovo ThinkPad - solid state drive 512 GB PCI Express 3.0 x4 (NVMe)" " Lenovo (NVMe) 4XB0K48502 Solid State Drives (SSDs) CDWG.com
"The ThinkPad 512GB PCIE NVMe SSD with M.2 form factor, high speed with PCIE-NVMe interface , it is the best choice to upgrade your ThinkPad systems." 
 "WD Green PC SSD WDS240G1G0B - solid state drive 240 GB SATA 6Gb/s" " WD 6Gb/s Solid State Drives (SSDs) CDW.com
"With the performance boost from a WD Green SATA SSD, you can browse the web, play a game, or simply start your system in a flash. Lightweight and shock resistant, WD Green SSDs use no moving parts and help keep your data safe from loss in the case of accidental bumps and drops." 