Eathtek Replacement DC Power Jack Harness Cable for Lenovo Thinkpad X1 CARBON 3443 X 1 CARBON-3443 series, Compatible with part# 50.4RQ01.001 Compatible Model Numbers: Lenovo Thinkpad X1 CARBON 3443 X1 CARBON-3443 Compatible Part Number: 50.4RQ01.001 Replacement and high quality,Replace your faulty, cracked or broken dc power Each dc power is tested before shipping All pictures are taken from the real item, please check carefully before bidding.