GadKo Serial Mini Gender Changer / Coupler, DB9 Female to DB9 Female GadKo is the only authorized dealer of GadKo branded products. This adapter will change the gender of a male DB9 cable or connect two male DB9 cables together. If you have a cable with a DB9 male connector; this adapter would change that into a DB9 female while maintaining whatever pin-out was on your original cable.