Amazon.com: Square Tip 90W AC Charger Fit for Lenovo Thinkpad ADLX90NDC3A ADLX90NLC3A ADLX90NCC3A ADLX90NLC2A ADLX90NDC2A ADLX90NCC2A Laptop Power Supply Adapter Cord : Electronics
90W AC Adaptor for Lenovo ThinkPad X1 Carbon X1 Yoga 1st Gen T Series T470 T470S T460 T450 T440 T570 Laptop Power Supply Cord, USB(Yellow square tip) – PTComputers