 "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." 
 "Intel Solid-State Drive 540S Series - solid state drive 240 GB SATA 6Gb" " Intel 6Gb SSDSCKKW240H6X1 Solid State Drives (SSDs) CDW.com
"Designed for a range of devices from Ultrabooks to desktops and laptops, the Intel SSD 540s series delivers a low-power storage solution to meet the performance, quality, and reliability requirements demanded by today's consumer devices. Additionally, the 540s series offers increased value as Intel's TLC-based drive." 