Make sure you know the correct polarity of your old power supply pins.
Genuine CWT 12V 7.5A (90W) AC Adapter With 4-Pin DIN Output Plug. Model number: 2AAL090F (No Power Lead)
12V Furrion TV Main Power Adapter, 3 Pin DIN Plug B, Power Cable Included
Replacement for 19V 3.43A AC Adapter model ATS065T-P190 with 4 Pin Din Connector
Replacement for 24V 5A AC-DC Adaptor Power Supply with 4 Pin Din LEFT 2 Positive Pins + UK Lead
4 Pin DIN PCB Power Socket Hobby Electronics DIY (Pack of 5)
24V 5A AC-DC Adaptor Power Supply with 4 Pin Din TOP 2 Positive Pins + UK Lead