ST-M2X1 M.2 NGFF SATA KEY B+M SSD HDD to 20+6pin as sandisk/Toshiba/Intel SSD for Lenovo X1 Carbon Ultrabook is used to convert M.2 NGFF SSD as 26pin SSD for Lenovo X1 Carbon Ultrabook.
1. Fit for Lenovo X1 Carbon Ultrabook, replace following SSD by higher capacity M.2 NGFF SSD: 
Sandisk 45N8296/45N8297, SD5SG2 45N8298/45N8299 (leveno P/N NO) 128GB 256GB SSD, 45N8327 SSD SFF 128 GB;
Toshiba THNSNS128GMGP/45N8300 /45N8301  128GB;45N8303 SSD SFF 256 GB,45N8305 SSD SFF 180 GB Cherr Crest
Intel 45N8422/45N8423(leveno P/N NO) 240GB FDE Cherry Crest SSD;45N8421 SSD SFF 120GB Cherry
3.Only support M.2 SATA  SSD type 2242.
4. dimension: 70 x 21mms (LxW)