 "Lenovo - solid state drive 180 GB M.2 Card" " Lenovo Card 4XB0H30209 Solid State Drives (SSDs) CDW.com
"The ThinkPad 180GB M.2 SATA OPAL Solid State Drive is for ThinkPad X1 Carbon, with M.2 (22mm*80mm*73mm) form factor, high speed with SATA 6.0Gbps interface, unique supports X1 carbon." 
 "Sandisk 256GB Z400s M.2 SATA Business Class SSD/Solid State Drive"@en Drive LN70221 - SD8SNAT-256G-1122 | SCAN UK"@en
"256GB SanDisk Z400s, M.2 (22x80) SSD, M.2 SATA, SM2246XT, 2.23mm, Read 546MB/s, Write 342MB/s, 36.6k/69.4k IOPS, Retail  "@en 