Lenovo 256 GB 6.35cm (2.5 inch) SATA 3 Internal Solid State Drive (SSD, HDD_BO Part no. GXB0W42975) | Sequential Read up to 540 MB/s, Sequential Write up to 520 MB/s : Amazon.in: Computers & Accessories
How to upgrade the RAM and SSD on the Lenovo ThinkPad X1 Extreme