Used X1 Carbon 4th generation in fair condition, please check pictures.

Everything is tested working well.

Processor 6th Generation Intel Core i5 Processor i6-6300U 2.4 GHz up to 3.0 GHz 3MB cache
Graphics Intel HD Graphics 520 in processor only.
Memory: 8GB 1866MHz LPDDR3 / soldered to systemboard, no sockets
Display: 14.0" (355mm) FHD (1920x1080), anti-glare, LED backlight, IPS, 300 nits, 16:9 aspect ratio, 700:1 contrast ratio, 170° viewing angle
Storage: 256GB M.2 2280 SSD SATA, please check picture for SSD status
Ethernet: Gigabit Ethernet via Ethernet extension cable.(not included)
WLAN: 11ac+BT, Intel Dual Band Wireless-AC 8260, 2x2, M.2 card
Bluetooth Bluetooth 4.1 wireless, integrated in Wi-Fi + Bluetooth combo adapter
Dimensions: 13.11" x 9.02" x 0.59-0.65"; 333.0mm x 229.0mm x 14.95-16.45mm
Weight: Starting at 2.579 lb / 1.17 kg
Color: Black
Media reader: MicroSD card reader, supports UHS-II microSD card
Ports: 
Three USB 3.0 (one Always On), MiniDP, HDMI, Lenovo OneLink+ connector

Camera: HD720p resolution, low light sensitive, fixed focus
Audio support: HD Audio, Conexant CX11852 codec / stereo speakers, 1 watt x 2 / dual array microphone, combo audio/microphone jack

Keyboard: 6-row, spill-resistant, multimedia Fn keys, LED backlight
UltraNav: TrackPoint pointing device and buttonless glass surface touchpad, multi-touch
Fingerprint reader: Touch style fingerprint reader on the palm rest

Battery: Integrated Lithium Polymer 4-cell (52Wh) RapidCharge battery
AC adapter: 65W Slim tip AC adapter

Preload Windows 10 Pro 64