Does the Wireless CNC Connect have a DB25 connector?

No, the Wireless CNC Connect has a DB-9 serial port, but SFA sells those units as a KIT and the KIT includes a 5 ft serial cable that will connect the DB-9 serial port of the wireless CNC Connect to the CNC machines serial port.

Provide the Make and Model of the controls on your CNC machines that you are using the wireless units on and SFA will ship with the proper 5 ft serial cable when the order is placed.