This IBM Thinkpad T42 that just came to us : r/thinkpad
Why IBM? WHY? Bottom: T42, Top: Fitting Dock, of course with a different power plug. And I just bought 2 supplies for the T42, which are not fitting in the Dock. Now
IBM ThinkPad T42 Memory Replacement - iFixit Repair Guide
Amazon.com: 16V 4.5A 72W AC Adapter Charger for IBM ThinkPad A30E A22P A30 A31P A21E A21 R50 T50E R52 T42 T41P T42P T43P T30 T40 T41 : Electronics