Connect your serial devices and transfer your files - 2m DB9 Null Modem Cable - DB9 Female to Female Cable - RS232 Null Modem Cable - 9 pin Null Modem Cable - 2 m Black Female to Female Null Modem Cable - 1x DB9 (F) / 1x DB9 (F) - Black - 2m/ 6.56ft - High quality shielding prevents EMI interference - Molded connectors with strain relief