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DB9 Null Modem Male to DB9 Null Modem Male Connector
Null modems are used to connect two computers or other devices together to achieve file transfer.
Null modem connectors are different from straight through connectors because the receive and transmit conductors are crossed.
This is a miniature null modem with male connectors on each side.

Description

Use this adapter to convert any DB9 cable with a female end to a null modem cable with a male end.
Slim profile reduces bending and provides a secure connection.
Crossed receive and transmit conductors.
Although this is called a 9-pin null modem adapter because it fits into a 9-pin (DB9) socket, this adapter only has 8 pins. The 9th pin is not typically used in a null-modem adapter.