And adapters for RF modules with 20 pin dip headers? How to connect to computer for programming?

I have some old 9xtend modules that I’d like to test to see if they are working. They have the 20 pin dip header on them. How do I connect these to a computer’s serial port so I can work with them from the the XCTU software?

Also are there any adapters to adapt these units to work in an XBee socket?

I can find adapters for SMD modules, but nothing about these 9xTend and similarly packaged units.