ELECJET AnyWatt SQ, USB C to Slim Tip Adapter, Convert Lenovo Square Charger to Type C, for Lenovo Thinkpad, Samsung S8/S9/Note, Nintendo Switch, and Any USB C Devices : Amazon.in: Computers &
7.9mm Round Jack to Square End Adapter Pigtail for IBM Lenovo Thinkpad Ultrabook
Lenovo Square Adapter - "M"
Lenovo ThinkPad 45W Slim Tip/ Square pin AC Adapter – ALMAK CENTRE LTD
1pcs 7.9*5.5mm Male Dc Power Charger Adapter Connector Cable For Lenovo Thinkpad X1 Carbon 23cm - Pc Hardware Cables & Adapters - AliExpress