Inside the x201 there are 2 of these ports, one of which used by the WiFi card. Is it possible to use the second for an ssd? : r/thinkpad
Lenovo ThinkPad X201, X201I, X201S, X201T Series Laptop 2.5 Hard Drive/SSD Drive | eBay
lenovao thinkpad x201 hdd replacing - YouTube
Lenovo ThinkPad X201 12.1 Laptop, Intel Core I5-520M up to 2.93Ghz, 4G DDR3, 120G SSD, VGA, DP, W10P64-Multi Languages Support (EN/ES/FR), 1 year warranty Used Grade A - Walmart.com