Thinkpad X1 Carbon is an ultralight line of laptops from Lenovo. I had one for several years and it was a nice laptop, light and compact but reasonably powerful. One significant shortcoming is that it only has 8 GB of memory and you can't add more - there are no memory expansion slots.Note that the listing is for a 5th gen model, which is 5 years old by now, and has been out of production for quite some time. Listing it as "discounted from $1219" is a bit misleading.