GadKo DB25 Coupler / Gender Changer, DB25 Male to DB25 Male GadKo is the only authorized dealer of GadKo branded products. This adapter can be used to join two female DB25 cables together or change the gender of one end. If you have a cable with a DB25 female connector; this adapter would change that into a DB25 male while maintaining whatever pinout was on your original cable.