135W 20V 6.75A Laptop AC Adapter Charger for Lenovo IdeaPad Y50 ADL135NDC3A 36200605 45N0361 45N0501 Y50-70-40 t540p 20v 6 75a 135w original ac adapter charger laptop power supply for lenovo thinkpad t530 t520 w530 w520 w510 3pin 45n0059 45n0055