Connect your serial devices, and transfer your files - The SCNM9FF2MBK 2m DB9 Null Modem Cable features two DB9 female connectors, allowing you to connect a serial device to a 9-pin serial port, or transfer files directly from PC to PC via a serial connection. Designed to provide a reliable, long-lasting connection, this RS232 null modem cable is backed by StarTech.com"s lifetime warranty.