DTK 20V 3.25A 65W Laptop Charger for LENOVO Thinkpad IdeaPad Notebook Computer PC Power Cord Supply Lead AC Adapter SL300 T420 Edge Essential series Connector: 7.9 x 5.5mm : Amazon.co.uk: Computers &
LENOVO ThinkPad T420 Laptop Charger 20V 4.5A 90W with Power Cord (free shipping) - Voyager Trading
New Genuine Lenovo ThinkPad T420 T420s 65W AC Adapter Power Supply Charger PSU | eBay