WOVTE DB9 Female to Female Mini Gender Changer Coupler Adapter Connector Pack of 2 Convert a DB9 female connection to a DB9 female connection, use for serial applications Low profile to save space! Quickly change the gender, or join two cables together Save the cost and hassle of buying a new cable by just changing the gender of your port and using the cable you already have Each changer is molded and fully shielded, preventing any unwanted EMI/RFI interference caused from office equipment Small and simple design provide convenience for carrying and storing, easy to use and intall