Lenovo 0B47009 - ThinkPad 90W AC Adapter (slim tip)
Amazon.com: New Laptop Charger 90W watt Slim Square tip AC Power Adapter(Power Supply) with Power Cord Compatible/Replacement for Lenovo ThinkPad Yoga : Electronics
ThinkPad 90W AC Adapter (slim tip) – SA – TechExpress
20V 4.5A 90W Lenovo USB Square Adapter Charger for Lenovo ThinkPad X1 Carbon Series Touch Ultrabook ADLX90NLC2A - WIT Computers
Techie 90W 20V 4.5A Pin Size 7.9mm X 5.5mm X 0.9mm Compatible Lenovo Laptop Charger. - Techie Store
Laptop Adapter for Lenovo USB Pin 90w ADLX90NLC3A 36200252 PA-1900-72 45N0245 - Royal Computer Solution