Convert your existing straight wired cables to null modem or reverser (transmit & receive) cables with these handy, inexpensive adapters. Simply plug these adapters onto the end of a cable and you're done! The low profile design reduces leverage strain on overstressed computer ports
Specifications
Connectors: DB9 Male to DB9 Male
Crosses the data transmission lines in straight-through serial cables
Economical solution for connecting serial ports on notebooks