Eathtek Replacement DC Power Jack Harness Plug In Cable for Lenovo Essential B590 series, Compatible with part numbers 50.4TE08.031 50.4TE08.021 Compatible Model Numbers: Lenovo Essential B590 Compatible Part Number: 50.4TE08.031 50.4TE08.021 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.