Extend the connection between your db9 serial devices by up to 2mr r allows you to extend the reach of your serial devices by up to 2 meters reducing cable length restrictions and providing flexibility for positioning your serial devices as neededr high quality cable shielding helps prevent emi interferencer backed by startechcom lifetime warranty for dependable performancer r the mxt1002mbk black serial extension cable 2m features one db9 male connector and one db9 female connector providi