I have a 2015, 3rd Generation X1 Carbon, no touch screen. Specs are associated follows:
- 8GB RAM
- 250GB Samsung SSD
- LG 2560 x 1440 display (two small imperfections, imperceptible when using, but pictures linked)
- Fingerprint reader
- Windows 10 Pro
Keyboard is in pristine condition. Bought a replacement key for the backslash key (\ and |) and it snapped into place perfectly. Comes with the charger. Only demerits are the imperceptible screen things. Otherwise, it's great.
Asking: $750 firm. I paid $1800+ for it when I ordered it new and have done my best to take care of it (you can thank my students for the backslash key).
Let me know if you would like any other pictures or information.