Connector 1: DB-9 Connector 2: DB-9. Product colour: White. Collection Model Startech DB9 RS232 Serial Null Modem Adapter - F/F. Product Family DB9 RS232 Serial Null Modem Adapter - F/F. The NM9FF Null Modem Adapter features two DB9 female connectors - a cost-saving way to convert a straight through cable into a null modem cable.
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