Amazon.com: New P50 P51 P70 170W Power AC Charger Replacement for Lenovo Thinkpad W540 W541 E440 E450 E555 S431,fit Legion 4X20E50574 ADL170NLC2A Laptop [20V 8.5A] : Electronics
170W Charger Adapter ADL135NLC3A for Lenovo ThinkPad W Series- W540, W541, W550s - Walmart.com
Power Supply Adapter Laptop Charger For Lenovo Thinkpad W540 W541 170 Watt 20v 8.5a Square With Pin - Laptop Adapter - AliExpress
Genuine 170w Laptop Power Adapter Charger For Lenovo Thinkpad P50/p51/p70/p71/w540/w541 20v 8.5a Usb Tip - Buy Laptop Adapter W541,Power Adapter P70,W540 Ac Adapter Product on Alibaba.com