DB9 Female to DB9 Female Null Modem Cables by Amphenol feature crossed wiring with hardware flow control support for serial data transfer applications. Our fully assembled null modem cable integrates dual layer copper shielded 26 AWG data-grade wire with pre-terminated DB9 female d-sub connectors. 9-conductor RS232C full handshaking compliant design is ideal for DTE-DTE or DCE-DCE null modem applications such as PC to PC data transfer.