Convert a DB9 female connection to a DB9 female connection use for serial applicationsLow profile to save space! Quickly change the gender or join two cables togetherSave the cost and hassle of buying a new cable by just changing the gender of your port and using the cable you already haveEach changer is molded and fully shielded preventing any unwanted EMI/RFI interference caused from office equipmentSmall and simple design provide convenience for carrying and storing easy to use and install