Changes your Serial cables gender
RS232 DB9 male connector
Female to female RS232
Meant for serial applications
Connect a DB9 Pin Male serial cable into this (Null Modem Adapter) Gender Changer's female port and convert your cable connections gender, works with any RS232 DB9 Male (with pins) connector on any length serial cable.
CableMax DB-9 F/F Serial RS232 Mini Gender Changer - Null Modem Adapter - B01N7JYXXA