StarTech.com 10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M - Null modem cable - DB-9 (F) to D - SCNM925FM

Connect your serial devices, and transfer your files. The SCNM925FM 10ft Cross Wired Serial/Null Modem Cable features one DB9 female and one DB25 male connector, allowing you to connect a 9-pin serial device to a 25-pin serial port, or transfer files from PC-to-PC via a serial connection.