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 3680 Series
This is my Thinkpad x201 i got with an Ultrabase 200, Charger and a Samsung SSD. All for 50€ : r/thinkpad
NOKOTION For Lenovo Thinkpad X201 Laptop Motherboard 63Y2064 MAIN BOARD With I5-540M CPU+Heatsink DDR3 - AliExpress
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Thinkpad X201 3249-Xxx; 3626-Xxx; 3680-Xxx - A35 at Amazon.com
A closer look at convertibles: Lenovo's ThinkPad X201 Tablet | ZDNET
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
Fix or upgrade IBM Lenovo X201 Pc Tablet Fast and easy Computer Laptop CLICK IT! CLICK IT! - YouTube