New Original for Lenovo ThinkPad X270 A275 SSD HDD NVMe M.2 Adapter Caddy & Cable 01HY565 01HY969 - AliExpress
Amazon.com: Lenovo ThinkPad X250 12.5in Laptop, Core i5-5300U 2.3GHz, 8GB Ram, 120GB SSD, Windows 10 Pro 64bit (Renewed) : Electronics
X250: NVMe SSD in WWAN slot? : r/thinkpad
Custom NVMe SSD bracket for X260 - great mod, made way cheaper if you print the bracket yourself. Link in the comments : r/thinkpad
Intel HP SSD M.2 6G SATA Storage Controller incl. 1x 128GB SATA SSD (optional 2x M.2 SSD) Boot drive OS Installation vmware Windows Server Linux Ceph FreeNAS - Serverschmiede.com GmbH
TUTORIAL】How to Install SSD on Lenovo Thinkpad x250 Notebook Laptop - YouTube
Amazon.com: Emtec X250 Power Plus M.2 SATA SSD (512GB) : Electronics