small PCB with a chip to negotiate more than 5V (9V, 12V, 15V, 20V) The 20V versions of these make excelent replacements for broken rectangular thinkpad power

small PCB with a chip to negotiate more than 5V (9V, 12V, 15V, 20V) The 20V versions of these make excelent replacements for broken rectangular thinkpad power connectors, as they fit within the footprint. Add a magnetic Usb-c adapter and it's much better than the factory options. Sugru works well for mounting it.