Connect your computers serial port to the rj45 console port on your cisco routerr r low cost replacement spare router console cabler durable reliable performance backed by startechcom lifetime warrantyr r connecting your computers serial port to the rj45 console port on your cisco router the db9concabl6 6ft cisco console management cable is designed as a replacement cable for use with several cisco routers including the 600 800 1600 and 1700 seriesr startechcoms cisco console man